LENOVO THINKPAD P14S GEN 5 AMD (03) PDF MANUAL

This manual contains service and reference information for the following products:

For Intel models:

• ThinkPad T14 Gen 5 (Machine type: 21ML and 21MM)
• ThinkPad T16 Gen 3 (Machine type: 21MN and 21MQ)

For AMD models:

• ThinkPad T14 Gen 5 (Machine type: 21MC and 21MD)
• ThinkPad P14s Gen 5 AMD (Machine type: 21ME and 21MF)

Note: ThinkPad T14 Gen 5 might be shipped with different microprocessors, namely Intel® and Advanced Micro Devices (AMD). Hereby Intel models and AMD models are used to distinguish computer models with different microprocessors.

This manual is intended only for trained service technicians who are familiar with products. It should be used along with advanced diagnostic tests to troubleshoot problems effectively. Before servicing a product, technicians must read all information under Chapter 1 “Safety information” and Chapter 2 “Important service information”.

Follow these rules to ensure general safety:

Observe good housekeeping in the area of the machines during and after maintenance.

When lifting any heavy object:

1. Ensure that you can stand safely without slipping.

2. Distribute the weight of the object equally between your feet.

3. Use a slow lifting force. Never move suddenly or twist when you attempt to lift.

4. Lift by standing or by pushing up with your leg muscles; this action removes the strain from the muscles in your back. Do not attempt to lift any object that weighs more than 16 kg (35 lb) or that you think is too heavy for you.

Do not perform any action that causes hazards to the customer, or that makes the equipment unsafe.

Before you start the machine, ensure that other service technicians and the customer’s personnel are not in a hazardous position.

Place removed covers and other parts in a safe place, away from all personnel, while you are servicing the machine.

Keep your tool case away from walk areas so that other people will not trip over it.

Do not wear loose clothing that can be trapped in the moving parts of a machine. Ensure that your sleeves are fastened or rolled up above your elbows. If your hair is long, fasten it.

Insert the ends of your necktie or scarf inside clothing or fasten it with a nonconductive clip, about 8 centimeters (3 inches) from the end.

Do not wear jewelry, chains, metal-frame eyeglasses, or metal fasteners for your clothing, because metal objects are good electrical conductors.

Wear safety glasses when you are hammering, drilling, soldering, cutting wire, attaching springs, using solvents, or working in any other conditions that might be hazardous to your eyes.

After service, reinstall all safety shields, guards, labels, and ground wires. Replace any safety device that is worn or defective.

Reinstall all covers correctly before returning the machine to the customer.

Fan louvers on the machine help to prevent overheating of internal components. Do not obstruct fan louvers or cover them with labels or stickers.

Observe the following rules when working on electrical equipment:

Use only approved tools and test equipment. Some hand tools have handles covered with a soft material that does not insulate you when working with live electrical currents.

Many customers have, near their equipment, rubber floor mats that contain small conductive fibers to decrease electrostatic discharges (ESD). Do not use this type of mat to protect yourself from electrical shock.

Find the room emergency power-off (EPO) switch, disconnecting switch, or electrical outlet. If an electrical accident occurs, you can then operate the switch or unplug the power cord quickly.

Do not work alone under hazardous conditions or near equipment that has hazardous voltages.

Disconnect all power before:

Performing a mechanical inspection

Working near power supplies

Removing or installing main units

Before you start to work on the machine, unplug the power cord. If you cannot unplug it, ask the customer to power off the wall box that supplies power to the machine, and to lock the wall box in the off position.

If you need to work on a machine that has exposed electrical circuits, observe the following precautions:

Ensure that another person, familiar with the power-off controls, is near you. That person must be there to switch off the power, if necessary.

Use only one hand when working with powered-on electrical equipment; keep the other hand in your pocket or behind your back.

CAUTION: An electrical shock can occur only when there is a complete circuit. By observing the above rule, you may prevent a current from passing through your body.

When using testers, set the controls correctly and use the approved probe leads and accessories for that tester.

Stand on suitable rubber mats (obtained locally, if necessary) to insulate you from grounds such as metal floor strips and machine frames.

Observe the special safety precautions when you work with very high voltages. Instructions for these precautions are in the safety sections of maintenance information. Use extreme care when measuring high voltages.

Regularly inspect and maintain your electrical hand tools for safe operational condition.

Do not use worn or broken tools and testers.

Never assume that power has been disconnected from a circuit. First, check that it has been powered off.

Always look carefully for possible hazards in your work area. Examples of these hazards are moist floors, nongrounded power extension cables, power surges, and missing safety grounds.

Do not touch live electrical circuits with the reflective surface of a plastic dental mirror. The surface is conductive; such touching can cause personal injury and machine damage.

Do not service the following parts with the power on:

Power supply units

Fans

Units similar to those listed above

This practice ensures correct grounding of the units.

If an electrical accident occurs:

Use caution; do not become a victim yourself.

Switch off power.

Send another person to get medical aid.

Use the following checklist at the beginning of every service task to identify potentially unsafe conditions. Begin the checks with the power off, and the power cord disconnected.

1. Check exterior covers for damage (loose, broken, or sharp edges).

2. Turn off the computer. Disconnect the power cord.

3. Check the power cord for:

a. A third-wire ground connector in good condition. Use a meter to measure third-wire ground continuity for 0.1 ohm or less between the external ground pin and the frame ground.

b. The power cord should be the authorized type specified for your computer. Go to: https:// support.lenovo.com/partslookup.

c. Insulation must not be frayed or worn.

4. Check for cracked or bulging batteries.

5. Remove the cover.

6. Check for any obvious non-ThinkPad / non-Lenovo alterations. Use good judgment as to the safety of any non-ThinkPad / non-Lenovo alterations.

7. Check inside the unit for any obvious unsafe conditions, such as metal filings, contamination, water or other liquids, or signs of fire or smoke damage.

8. Check for worn, frayed, or pinched cables.

9. Check that the power-supply cover fasteners (screws or rivets) have not been removed or tampered with.

If any unsafe conditions are present, you must determine how serious the apparent hazard could be and whether you can continue without first correcting the problem.

Any computer part containing transistors or integrated circuits (ICs) should be considered sensitive to electrostatic discharge (ESD). Protect against ESD damage by equalizing the charge so that the machine, the part, the work mat, and the person handling the part are all at the same charge.

Notes:

1. Use product-specific ESD procedures when they exceed the requirements noted here.

2. Ensure that the ESD protective devices you use have been certified (ISO 9000) as fully effective.

When handling ESD-sensitive parts:

Keep the parts in protective packages until they are inserted into the product.

Avoid contact with other people.

Wear a grounded wrist strap against your skin to eliminate static on your body.

Prevent the part from touching your clothing. Most clothing is insulative and retains a charge even when you are wearing a wrist strap.

Use a grounded work mat to provide a static-free work surface. The mat is especially useful when handling ESD-sensitive devices.

Select a grounding system, such as those listed below, to provide protection that meets the specific service requirement.

Note: The use of a grounding system to guard against ESD damage is desirable but not necessary.

Attach the ESD ground clip to any frame ground, ground braid, or green-wire ground.

When working on a double-insulated or battery-operated system, use an ESD common ground or reference point. You can use coax or connector-outside shells on these systems.

Use the round ground prong of the ac plug on ac-operated computers.

Electrical grounding of the computer is required for operator safety and correct system function. Proper grounding of the electrical outlet can be verified by a certified electrician.

Unless hot swap is allowed for the FRU being replaced, do as follows before removing it: power off the computer, unplug all power cords from electrical outlets, remove the battery pack, and disconnect any interconnecting cables. Ensure that all software fixes, drivers, and UEFI BIOS downloads are installed before replacing any FRUs listed in this manual.

DANGER

Before the computer is powered on after FRU replacement, make sure that all screws, springs, and other small parts are in place and are not left loose inside the computer. Verify this by shaking the computer and listening for rattling sounds. Metallic parts or metal flakes can cause electrical short circuits.

After a system board is replaced, ensure that the latest UEFI BIOS is loaded to the system board before completing the service action.

Use the following strategy to prevent unnecessary expense for replacing and servicing FRUs:

If you are instructed to replace a FRU but the replacement does not correct the problem, reinstall the original FRU before you continue.

Some computers have both a processor board and a system board. If you are instructed to replace either the processor board or the system board, and replacing one of them does not correct the problem, reinstall that board, and then replace the other one.

If an adapter or a device consists of more than one FRU, any of the FRUs may be the cause of the error. Before replacing the adapter or device, remove the FRUs, one by one, to see if the symptoms change. Replace only the FRU that changed the symptoms.

Always try to run a low-level format operation before replacing a solid-state drive. This will erase all data on the drive. Ensure that the customer has a current backup of the data before you perform this task.

Attention: The drive startup sequence in the computer you are servicing might have been changed. Be extremely careful during write operations such as copying, saving, or formatting. If you select an incorrect drive, data or programs can be overwritten.

Use the error codes displayed on the screen to diagnose failures. If more than one error code is displayed, begin the diagnosis with the first error code. Whatever causes the first error code might also cause false error codes. If no error code is displayed, see whether the error symptom is listed in the section of “Symptom-to-FRU index”.

Dynamic Configure To Order (CTO) model: This model provides the ability for a customer to configure a Lenovo solution from a Web Site, and have this configuration sent to fulfillment, where it is built and shipped directly to the customer. The machine label and eSupport will load these products as the 4-character MT, 4-character model, and 2-character country code. The model is “CTO1” and the default country code is “WW” (example: 20AACTO1WW).

Special-bid model: This model is a unique configuration that has been negotiated between Lenovo and the customer. A unique MTM consists of a 4-character MT, a 4-character model, and a numeric 2-character country code is provided to the customer to place orders (example: 20AA000955). The country code assigned is numeric and does not designate a specific country or region. The custom model fact sheet for the MTM indicates which country the special bid MTM is set up for. Special-bid offering is not generally announced.

Standard model: Standard models (fixed configuration) are announced and offered to all customers. The MTM portion of the machine label consists of a 4-character MT, a 4-character model, and an alphabetic 2-character country code. The country code assigned is alphabetic and represents a designated country or region (example: 20AA0009UK).

To identify FRUs for a product, do the following:

Step 1. Go to https://support.lenovo.com/partslookup.

Step 2. Type the Machine Type in the corresponding field to get a general FRU list. Or type the Serial Number for more detailed FRU information.

Before you go to the checkout guide, be sure to read the following important notes:

Only certified trained personnel should service the computer.

Before replacing any FRU, read the entire page on removing and replacing FRUs.

When you replace FRUs, it is recommended to use new nylon-coated screws.

Be extremely careful during such write operations as copying, saving, or formatting. Drives in the computer that you are servicing sequence might have been altered. If you select an incorrect drive, data or programs might be overwritten.

Replace a FRU only with another FRU of the correct model. When you replace a FRU, ensure that the model of the machine and the FRU part number are correct.

A FRU should not be replaced because of a single, unreproducible failure. Single failures can occur for a variety of reasons that have nothing to do with a hardware defect, such as cosmic radiation, ESD, or software errors. Consider replacing a FRU only when a problem recurs. If you suspect that a FRU is defective, clear the error log and run the test again. If the error does not recur, do not replace the FRU.

Be careful not to replace a nondefective FRU.

When you return a FRU, you must include the following information in the parts exchange form or parts return form that you attach to it:

1. Name and phone number of service technician

2. Date of service

3. Date on which the machine failed

4. Date of purchase

5. Failure symptoms, error codes appearing on the display, and beep symptoms

6. Procedure index and page number in which the failing FRU was detected

7. Failing FRU name and part number

8. Machine type, model number, and serial number

9. Customer’s name and address

The following are not covered under warranty:

LCD panel cracked from the application of excessive force or from being dropped

Scratched (cosmetic) parts

Distortion, deformation, or discoloration of the cosmetic parts

Plastic parts, latches, pins, or connectors that have been cracked or broken by excessive force

Damage caused by liquid spilled into the system

Damage caused by the improper insertion of a PC Card or the installation of an incompatible card

Diskette drive damage caused by pressure on the diskette drive cover, foreign material in the drive, or the insertion of a diskette with multiple labels

Damaged or bent diskette eject button

Fuses blown by attachment of a nonsupported device

Forgotten computer password (making the computer unusable)

Sticky keys caused by spilling a liquid onto the keyboard

Use of an incorrect ac power adapter on laptop products

Note: During the warranty period, the customer may be responsible for repair costs if the computer damage was caused by misuse, accident, modification, unsuitable physical or operating environment, or improper maintenance by the customer.

The following symptoms might indicate damage caused by nonwarranted activities:

Missing parts might be a symptom of unauthorized service or modification.

Check for obvious damage to a solid-state drive. If the spindle of a solid-state drive becomes noisy, the solid-state drive might have been dropped or subject to excessive force.

Use the following procedures as a guide in identifying and correcting problems with the ThinkPad notebook computer.

Note: The diagnostic tests are intended to test only ThinkPad products. The use of non-ThinkPad products, prototype cards, or modified options can lead to false indications of errors and invalid system responses.

Step 1. Identify the failing symptoms in as much detail as possible.

Step 2. Verify the symptoms. Try to re-create the failure by running the diagnostic test or by repeating the operation.

Many computer problems can be solved without outside assistance. If you experience a problem with your computer, the first place to start is the troubleshooting information in your computer documentation. If you suspect a software problem, see the documentation, including readme files and help information systems, that come with the operating system or program.

The Vantage app is preinstalled on your computer. It supports the hardware scan function. It combines diagnostic tests, system information collection, security status, and support information, along with hints and tips for optimal system performance.

Note: If you are unable to isolate and repair the problem yourself after running the program, save and print the log files created by the program. You need the log files when you speak to a Lenovo technical support representative.

The troubleshooting information or the diagnostic programs might tell you that you need additional or updated device drivers or other software. You can get the latest technical information and download device drivers and updates from the Lenovo Support Web site at: https://support.lenovo.com

For additional information, see the help system of the program.

Run quick test programs to troubleshoot and resolve computer problems, especially when the computer does not have the Vantage app installed.

To download and install a quick test program, go to https://www.lenovo.com/diags, and follow the instructions on the Web site.

To run a test using quick test program, do the following:

Step 1. Go to the C:\SWTOOLS\ldiag directory.

Step 2. Double-click the lsc_lite.exe file.

Step 3. When the User Account Control window opens, click Yes.

Step 4. Select the device class to be tested.

Step 5. Select the devices to be tested.

Step 6. Select the test to be performed.

Step 7. Follow the instructions on the screen to start the test. When a problem is detected, information messages are displayed. Refer to the messages to troubleshoot the problem.

A UEFI diagnostic program is preinstalled on the computer. This program enables you to view system information and test some hardware devices in your computer, such as memory, storage devices, the LCD, and system board buses.

To run the UEFI diagnostic program, do the following:

Step 1. Turn on the computer. If the computer cannot be turned on, go to “Power system checkout”, and check the power sources. If an error code is displayed, go to “Symptom-to-FRU index” for error code descriptions and troubleshooting hints.

Step 2. When the logo screen is displayed, repeatedly press and release the F10 key. The main screen of the UEFI diagnostic program is displayed.

Step 3. Follow the instructions on the screen to use the program.

The following table displays the main items of the UEFI diagnostic program. Depending on the model, the items might differ slightly.

Table 3. Items on the main screen of the UEFI diagnostic program

Tests	Tools
Storage Memory Battery CPU Display FAN Keyboard Mouse PCI Express Touch	System Information Bad Block Recovery Smart Information

If the computer you are servicing is not installed with the UEFI diagnostic program, you can download a bootable diagnostic program from the Lenovo Support Web site. This program enables you to view system information and test some hardware devices. To use it, you need to create a bootable diagnostic medium using a USB device.

Create a bootable diagnostic medium using a USB device:

Step 1. Go to https://www.lenovo.com/diags.

Step 2. Click Diagnose & Fix → Download Lenovo Diagnostics UEFI Bootable Version.

Step 3. Follow the instructions on the Web site to create a bootable diagnostic medium on a USB device.

Use the bootable diagnostic medium:

Step 1. Attach the USB device to the computer.

Step 2. Turn on the computer. If the computer cannot be turned on, go to “Power system checkout”, and check the power sources. If an error code is displayed, go to “Symptom-to-FRU index” for error code descriptions and troubleshooting hints.

Step 3. When the logo screen is displayed, repeatedly press and release the F12 key. When the Boot Menu window opens, release the F12 key.

Step 4. Use the arrow keys to select USB HDD and then press Enter. The diagnostic program launches.

Step 5. Follow the instructions on the screen to use the diagnostic program.

To verify if a battery or an ac power adapter is functional, do the following:

Step 1. Turn off the computer.

Step 2. Connect the ac power adapter.

Step 3. Turn on the computer. If the computer can be turned on, it means that either the battery or the ac power adapter is functional.

Step 4. Insert a straightened paper clip into the emergency-reset hole to reset the computer. If the computer is still powered on, it means that the ac power adapter is functional.

Step 5. Turn off the computer.

Step 6. Disconnect the ac power adapter and turn on the computer. If the computer can be turned on, it means that the battery is functional.

If you suspect a power problem, see the appropriate checkouts for the ac power adapter, built-in battery, or coin-cell battery.

If the computer fails only when the ac power adapter is used:

If the power problem occurs only when the docking station or the port replicator is used, replace the docking station or the port replicator.

If the system status indicator does not blink three times when an ac power source is connected, check the power cord of the ac power adapter for correct continuity and installation.

If the computer does not charge during operation, proceed to checking the built-in battery.

Note: Noise from the ac power adapter does not always indicate a defect.

Step 1. Connect the computer to a power outlet and turn on the computer.

Step 2. Start the Vantage app, and locate the Power section. The ac power adapter information is displayed.

Ensure that you use the ac power adapter that is shipped with the computer to provide enough power to the computer. Otherwise, a message will be displayed, prompting you that the computer will not be charged or will be charged slowly.

This system supports only batteries specially designed for this specific system and manufactured by Lenovo or an authorized manufacturer. The system does not support unauthorized batteries or batteries designed for other systems. If an unauthorized battery or a battery designed for another system is installed, the system will not charge.

Attention: Lenovo has no responsibility for the performance or safety of unauthorized batteries, and provides no warranties for failures or damage arising out of their use.

Move your pointer to the battery-status icon in the Windows notification area to check the battery status. The icon displays the percentage of battery power remaining and how long you can use your computer before you must charge the battery.

To check whether the battery charges properly during operation, do the following:

Step 1. Discharge the battery to 50% or lower.

Step 2. Connect the computer to ac power to charge the battery. If the battery status icon in the Windows notification area indicates that the battery is not charging, remove the battery and let it return to room temperature.

Step 3. Reinstall the battery. If the battery is still not charging, replace the battery.

Step 4. Check the battery status icon again. If the same error still exists, replace the system board.

To check the coin-cell battery, do the following:

Step 1. Power off the computer, and unplug the ac power adapter from it.

Step 2. Turn the computer upside down.

Step 3. Remove the built-in battery. See “Disabling the built-in battery”.

Step 4. Remove the coin-cell battery. See “Coin-cell battery” removal instructions.

Step 5. Measure the voltage of the battery according to the table below:

Wire	Voltage (V dc)
Red (+)	+2.5 to +3.2
Black (-)	Ground

If the voltage is correct, replace the system board.

If the voltage is not correct, replace the coin-cell battery.

If the coin-cell battery discharges quickly after replacement, replace the system board.

To reset or restore Windows, refer to the information below:

Use Lenovo recovery options:

Step 1. Go to https://support.lenovo.com/HowToCreateLenovoRecovery.

Step 2. Follow the on-screen instructions.

Use Window recovery options:

Step 1. Go to https://pcsupport.lenovo.com.

Step 2. Detect your computer or manually select your computer model.

Step 3. Click Troubleshoot & Diagnose → Operating system Diagnostics and then follow the on-screen instructions.

You can set a power-on password, supervisor password, system management password, or NVMe password in UEFI BIOS to prevent unauthorized access to your computer. If any of these passwords has been set, a prompt for it will be displayed on the screen whenever the computer is turned on. The computer does not start until the password is entered.

Note: If only a supervisor password is set, the password prompt will not be displayed when the operating system is started.

• Power-on password: Protects the system from being turned on by an unauthorized person. Must be entered before the OS can start.
• NVMe passwords: Prevents unauthorized access to data on the storage drive. Requires password entry each time the drive is accessed. Can be Single Password (user access) or Dual Password (User + Admin). Admin password allows network-wide access and management. Press F1 at the prompt to switch between user and admin password entry. NVMe passwords are not available if TCG Opal drive/software is active or on Intel models with an eDrive in Windows 10.
• Supervisor password (SVP): Protects system information in UEFI BIOS. Prevents unauthorized changes to most configuration options without the password. Overrides the power-on password. Allows access even if a user sets a power-on password. Can be set consistently across multiple ThinkPads for easier administration. Attention: If the SVP is forgotten, the system board must be replaced (fee applies).
• System management password: Also protects UEFI BIOS information like the SVP, but with lower authority by default. Can be set via UEFI BIOS or WMI. Its authority can be customized to match the SVP.

You can enable the system management password to have the same authority as the supervisor password to control security related features. To customize the authority of the system management password through the UEFI BIOS menu:

Step 1. Enter the UEFI BIOS menu.

Note: When you are prompted, enter the correct supervisor password if a supervisor password has been set, or enter the correct system management password if no supervisor password has been set. Otherwise, you cannot change the configurations in the following steps.

Step 2. Select Security → Password → System Management Password Access Control.

Step 3. Follow the on-screen instructions.

Password Overrides: If both SVP and system management password are set, the SVP overrides the system management password. If both system management password and power-on password are set, the system management password overrides the power-on password.

To remove the power-on password, do one of the following:

If no supervisor password has been set:

Step 1. Turn off the computer.

Step 2. Remove the built-in battery.

Step 3. Remove the coin-cell battery.

Step 4. Turn on the computer and wait until the POST ends. After the POST ends, the password prompt will not be displayed. The power-on password has been removed.

Step 5. Reinstall the coin-cell battery and the battery.

If a supervisor password has been set and is known to the service technician:

Step 1. Turn on the computer.

Step 2. When the ThinkPad logo is displayed, immediately press F1.

Step 3. Type the supervisor password to enter the UEFI BIOS menu.

Step 4. Select Security → Password → Power-On Password.

Step 5. Type the current supervisor password in the Enter Current Password field. Then, leave the Enter New Password field blank, and press Enter twice.

Step 6. In the Changes have been saved window, press Enter.

Step 7. Press F10 to save changes and exit.

If you forget your NVMe password (Single password) or both user and admin NVMe passwords (Dual password), Lenovo cannot reset your passwords or recover data from the storage drive. You can contact a Lenovo authorized service provider to have the storage drive replaced. A fee will be charged for parts and service. If the storage drive is a CRU (Customer Replaceable Unit), you can also contact Lenovo to purchase a new storage drive to replace the old one by yourself.

To remove a system management password, do the following:

How to remove the system management password if no supervisor password has been set:

Step 1. Turn off the computer and disconnect ac power.

Step 2. Disable the built-in battery.

Step 3. Remove the base cover assembly.

Step 4. Remove the built-in battery.

Step 5. Remove the coin-cell battery.

Step 6. Reinstall the coin-cell battery.

Step 7. Reinstall the built-in battery.

Step 8. Reinstall the base cover assembly.

Step 9. Reconnect ac power.

Step 10. Turn on the computer and wait until the POST ends. After the POST ends, the password prompt does not appear. The system management password has been removed.

If a supervisor password has been set and is known to the service technician:

Step 1. Turn on the computer.

Step 2. When the ThinkPad logo is displayed, immediately press F1.

Step 3. Type the supervisor password to enter the ThinkPad Setup program.

Step 4. Select Security.

Step 5. Select Password.

Step 6. Select System Management Password.

Step 7. Type the current supervisor password in the Enter Current Password field. Then leave the Enter New Password field blank, and press Enter twice.

Step 8. In the Changes have been saved window, press Enter.

Step 9. Press F10 to save changes and exit the ThinkPad Setup program. The system management password has been removed.

AIM-T (AMD® Integrated Management Technology) provides secure and remote management capabilities for AMD-based platforms. With special WLAN and LAN modules, it allows remote management via Wi-Fi or Ethernet. To use this function, ensure AIM-T is enabled in the UEFI BIOS setup menu:

1. Restart the computer. When the logo displays, press F1 to enter the UEFI BIOS setup menu.

2. Click Config → AIM-T Options, and then turn on the AIM-T Control switch in the submenu.

Notes:

When the AIM-T function is enabled, the UEFI-WIFI network BOOT will be disabled automatically.

For more details and configurations about AIMT, you can refer to the information provided by AMD https:// http://www.amd.com/DASH.

To reduce power consumption, the computer has two power management modes: sleep and hibernation.

Sleep mode:

When the computer enters sleep mode, the screen goes blank and all internal devices are still powered on with lower power consumption.

To enter sleep mode, press Fn+4 or open the Start menu.

The computer goes into sleep mode automatically:

After a period of inactivity specified in power plan settings

When the battery power is low

To resume the computer from sleep mode, press the power button.

The computer automatically returns from sleep mode and resumes operation if:

The ring indicator (RI) is signaled by a serial device or a PC Card device.

The time set on the resume timer elapses.

Note: The computer does not accept any input immediately after it enters sleep mode. Wait a few seconds before taking any action to reenter operation mode.

Hibernation mode:

In hibernation mode, the following occurs:

The system status, RAM, VRAM, and setup data are stored on the solid-state drive.

The system is powered off.

Note: If the computer enters the hibernation mode while it is connected to the dock, do not disconnect it before resuming normal operation. If you do disconnect it and then try to resume normal operation, you will get an error message, and you will have to restart the system.

If you have defined closing the lid or pressing the power button as the event to cause hibernation, perform that action.

The computer also goes into hibernation mode automatically after a period of inactivity specified in power plan settings.

When the power is turned on, the computer returns from hibernation mode and resumes operation. The hibernation file in the boot record on the solid-state drive is read, and system status is restored from the solid-state drive.

This section lists symptoms and errors and their possible causes. The most likely cause is listed first, in boldface type.

Note: Do the FRU replacement or other actions in the sequence shown in the column headed “FRU or action, in sequence.” If replacing a FRU does not solve the problem, put the original part back in the computer. Do not replace a nondefective FRU.

This index can also help you determine, during regular servicing, what FRUs are likely to need to be replaced next.

A numeric error is displayed for each error detected in POST or system operation. If no numeric code is displayed, check the narrative descriptions of symptoms. If the symptom is not described there, go to “Intermittent problems”.

Note: For a device not supported by diagnostic codes in the ThinkPad notebook computers, see the manual for that device.

Symptom or error	FRU or action, in sequence
0177 Bad SVP data, stop POST task – The checksum of the supervisor password in the EEPROM is not correct.	Replace the system board.
0183 Bad CRC of Security Settings in EFI Variable. Enter the ThinkPad Setup program. – The checksum of the Security settings in the EFI Variable is not correct.	1. Run the ThinkPad Setup program. The settings will be corrected automatically. Then save the current settings by pressing F10. 2. Replace the system board.
0187 EEAIA data access error – The access to EEPROM is failed.	Replace the system board.
0188 Invalid RFID Serialization Information Area.	Replace the system board.
0189 Invalid RFID configuration information area – The EEPROM checksum is not correct.	Replace the system board.
0190 Critical low-battery error	1. Charge the battery. 2. Replace the battery.
0191 System Security – Invalid Remote Change requested.	1. Run the ThinkPad Setup program, and then save current setting by pressing F10. 2. Replace the system board.
0199 System Security – Security password retry count exceeded.	1. Run the ThinkPad Setup program. The retry count will be reset. Then save the current settings by pressing F10. 2. Replace the system board.
0270 Real Time Clock Error.	Have the computer serviced.
0271 Check Date and Time settings.	1. Run ThinkPad Setup to reset the time and date. 2. Replace the coin-cell battery and run the ThinkPad Setup program to reset the time and date.
1802 Unauthorized network card is plugged in – Turn off and remove the network card.	1. Remove the network card. 2. Replace the system board.
1820 More than one external fingerprint reader is attached. Power off and remove all but the reader that you set up within your main operating system.	Remove all but the reader that you set up for the authentication.
2100 Detection error on Main HDD (SSD0) or Detection error on Main HDD (HDD0)	1. Reseat the M.2 solid-state drive. 2. Replace the M.2 solid-state drive. 3. Replace the system board.
2110 Read error on Main HDD (SSD0) or Read error on Main HDD (HDD0)	1. Reseat the M.2 solid-state drive. 2. Replace the M.2 solid-state drive. 3. Replace the system board.
2200 Machine Type and Serial Number are invalid.	Have the computer serviced.
2201 Machine UUID is invalid	Replace the system board.
2202 Product Name is invalid.	Have the computer serviced.
2203 System configuration is invalid.	Have the computer serviced.
2204 System configuration data is invalid.	Have the computer serviced.

Table 4. Error messages

Symptom or error	FRU or action, in sequence
Thermal sensing error.	Replace the system board.
The battery installed is not supported by this system and will not charge. Please replace the battery with the correct Lenovo battery for this system. Press the Esc key to continue.	Replace the battery.
This system does not support batteries that are not genuine Lenovo-made or authorized. The system will continue to boot, but may not charge unauthorized batteries. Press the Esc key to continue. Attention: Lenovo has no responsibility for the performance or safety of unauthorized batteries, and provides no warranties for failures or damage arising out of their use.	Replace the battery.

The battery-charge LED indicator (hereafter referred to as LED indicator) blinks to help you diagnose and solve some computer problems. The LED indicator blinks amber first and then white continually, consisting of different blinking patterns. Each blinking pattern corresponds to an error code. For example, when the LED indicator blinks amber once and then blinks white twice, the blinking pattern corresponds to error code 0001.

Notes:

The LED indicator blinks automatically only when the error in the following table occurs.

The LED indicator blinks continually until the computer turns off. If you need to interrupt the process, press power button for a few seconds.

We recommend that you speak to our Customer Support Center before attempting to service the computer yourself so that you can be directed to the correct documentation and repair information. It might be recommended to have a Lenovo-authorized service provider repair your computer depending on the complexity of the error or fault.

Refer to the blinking patterns and error codes in the table below to solve your computer problems.

Blinking patterns (Amber / White)	Error codes	Solutions
1 / 2	0001: Reset error (platform reset not de-asserted)	1. Remove the ac power adapter and the removable battery if your computer has one. Then, reset the computer by doing one of the following: • For models with the emergency-reset hole, insert a straightened paper clip into the emergency reset hole to cut off power supply temporarily. Then, restart the computer with ac power connected. • For models without the emergency-reset hole, press and hold the power button for about seven seconds. Then, reconnect to all power resources and restart the computer. 2. If step 1 does not work, replace the system board (service provider only).
1 / 3	0002: Internal bus error	Replace the system board (service provider only).
1 / 4	0003: Non-Volatile Memory programming error in system power circuit	Replace the system board (service provider only).
2 / 2	0282: Memory module error	1. Reinstall or replace the memory module. 2. If step 1 does not work, replace the system board (service provider only).
2 / 3	0283: PCI resource error	1. Remove PCIe devices (the M.2 card, PCIe card, and so on) (service provider only). 2. If step 1 does not work, replace the system board (service provider only).
2 / 4	0284: TCG-compliant functionality-related error (might be the BIOS code validation failure)	Replace the system board (service provider only).
2 / 5	0285: TCG-compliant functionality-related error (might be the TPM initialization failure)	Replace the system board (service provider only).
3 / 1	0286: Integrated graphics error	Replace the system board (service provider only).
3 / 2	0287: Discrete graphics error	1. Reinstall or replace the discrete graphics card (service provider only). 2. If step 1 does not work, replace the system board (service provider only).
3 / 3	0288: Computer display error	1. Reconnect the display cable on both the system board side and the computer display side (service provider only) and check the LCD panel. 2. If step 1 does not work, connect an external display to your computer and check the status (customer or service provider). • If the external display works, replace the LCD panel (service provider only). • If the external display does not work, replace the system board (service provider only).
4 / 3	0281: General embedded controller error	Replace the system board (service provider only).

Table 5. No-beep symptoms

Symptom or error	FRU or action, in sequence
No beep, power-on indicator on, LCD blank, and no POST.	1. Run LCD Self Test. 2. Ensure that every connector is connected tightly and correctly. 3. Reseat memory module. 4. Replace the system board.
No beep, power-on indicator on, and LCD blank during POST.	1. Run LCD Self Test. 2. Reseat memory module. 3. Replace the system board.
The power-on password prompt appears.	A power-on password or a supervisor password is set. Type the password and press Enter.
No beep, power-on indicator on, LCD blank, and LED indicators on Esc, F1 and F4 blink sequentially during POST.	UEFI BIOS is performing memory retraining. The memory retraining might occur if any of the following situations is detected: • Memory module replacement • Total Memory Encryption setting change in UEFI BIOS • Memory Reference Code [MRC] change when UEFI BIOS updates Do not press the power button to interrupt this process. Wait a few minutes until the logo screen is displayed.
No beep, power-on indicator on, LCD blank, and LED indicators on Esc, F1 and F4 blink during POST.	UEFI BIOS is self-recovering. If the UEFI BIOS is corrupted or maliciously attacked, it can self-recover and restore computer from the last uncorrupted and secure backup. The blinking LED indicators on keys indicate the self-recovery progress: • LED indicator on Esc blinks: 0% to 32% • LED indicators on Esc and F1 blink simultaneously: 33% to 65% • LED indicators on Esc, F1 and F4 blink simultaneously: 66% to 100% Do not press the power button to interrupt this progress. Wait a few minutes until the logo screen is displayed.
The NVMe password prompt appears.	An NVMe password is set. Type the password and press Enter.

Important: The TFT LCD for the notebook computer contains many thin-film transistors (TFTs). The presence of a small number of dots that are missing, discolored, or always lighted is characteristic of TFT LCD technology, but excessive pixel problems can cause viewing concerns.

If the LCD you are servicing has two or less visible defective pixels, it should not be considered faulty. However, if the LCD has three or more visible defective pixels, it will be deemed as defective by Lenovo and it should be replaced.

Notes:

This policy applies to all ThinkPad Notebooks purchased on 1 January, 2008 or later.

Lenovo will not provide warranty replacement if the LCD is within specifications because we cannot guarantee that any replacement LCD will have zero pixel defects.

One pixel consists of R, G, B sub-pixels.

When you turn on the computer and the LCD goes black, run LCD Self Test to help you determine whether the LCD functions normally.

To run LCD Self Test:

Step 1. Ensure that the computer is connected to ac power. Then, press the power button for about seven seconds to turn off the computer.

Step 2. Press Fn, left Ctrl, and the power button at the same time. If the computer displays five solid colors in sequence across the entire screen, it indicates that the LCD functions normally.

Step 3. The test lasts for about 20 seconds and then exits automatically. You also can press the power button to exit the test.

Table 6. LCD-related symptoms

Symptom or error	FRU or action, in sequence
No beep, power-on indicator on, and a blank LCD during POST.	1. Run LCD Self Test. 2. Replace the system board.
• LCD backlight not working. • LCD too dark. • LCD brightness cannot be adjusted. • LCD contrast cannot be adjusted.	1. Reseat the LCD connectors. 2. Replace the LCD assembly. 3. Replace the system board.
• LCD screen unreadable. • Characters missing pixels. • Screen abnormal. • Wrong color displayed.	1. See important note for “LCD-related symptoms”. 2. Reseat all LCD connectors. 3. Replace the LCD assembly. 4. Replace the system board.
Horizontal or vertical lines displayed on LCD.	Replace the LCD assembly.

Intermittent system hang problems might happen due to a variety of causes that have nothing to do with a hardware defect, such as cosmic radiation, ESD, or software errors. FRU replacement should be considered only when a problem recurs.

When analyzing an intermittent problem, do the following:

Step 1. Run the diagnostic test for the system board in loop mode at least 10 times.

Step 2. If no error is detected, do not replace any FRUs.

Step 3. If any error is detected, replace the FRU shown by the FRU code. Rerun the test to verify that no more errors exist.

If the diagnostic tests did not identify the device that has failed, if wrong devices are installed, or if the system simply is not operating, follow these procedures to isolate the failing FRU (do not isolate FRUs that have no defects).

Verify that all attached devices are supported by the computer.

Verify that the power supply being used at the time of the failure is operating correctly. See “Power system checkout”.

Step 1. Turn off the computer.

Step 2. Visually check each FRU for damage. Replace any damaged FRU.

Step 3. Remove or disconnect all of the following devices:

a. Non-ThinkPad devices

b. Devices attached to the dock

c. Printer, mouse, and other external devices

d. Battery

e. Solid-state drive

f. External diskette drive or optical drive

g. Memory module

h. PC cards

Step 4. Turn on the computer.

Step 5. Determine whether the problem has been solved.

Step 6. If the problem does not recur, reconnect the removed devices one at a time until you find the failing FRU.

Step 7. If the problem remains, replace the following FRUs one at a time (do not replace a nondefective FRU):

a. System board

b. LCD assembly

Lenovo Memory Self Repair (hereafter referred to as repair tool) enables you to repair memory single-bit or single-row failure with internal redundant resources.

It is recommended that you use the repair tool in the following situations:

The operating system is unstable, such as having blue screen error or system crash.

Any application operates abnormally, such as crashing or quitting unexpectedly.

Any test result indicates memory-related errors.

Note: The repair tool can be used only when your computer can be turned on normally.

Step 1. Restart the computer.

Step 2. When the logo screen is displayed, trigger the repair tool by one of the following methods:

Press F4.

Press Enter to enter Startup Interrupt Menu, and then press F4.

Press F12 to enter App Menu, and then select Lenovo Memory Self Repair.

Step 3. Read through the important information in the displayed window and click Yes to run the tool.

Step 4. Check the repair result on the pop-up dialog box. There are three types of results.

Memory Repaired: it means that the memory failure is detected and repaired.

Memory failure detected but repair was unsuccessful: it means that the memory failure is detected but cannot be repaired.

No failure detected: it means that no memory failure is detected.

If the issue persists, you can try again or contact Lenovo for additional support.

Step 5. Click Continue to turn on the computer.

The following tables introduce the functions of keyboard shortcuts.

FnLock and function keys

Key / Key combination	Function description
Fn+FnLock (Esc key)	Switch between the special and standard functions of the function keys (F1-F12). LED indicator on Esc key indicates which function is enabled: • When the indicator is off, the special function is enabled. • When the indicator is on, the standard function is enabled. (Special functions are denoted by icons, standard functions by F1-F12 characters)
Mute icon (Speaker with X)	Mute / Unmute (Speakers).
Volume down icon	Decrease volume.
Volume up icon	Increase volume.
Microphone icon with X	Enable / Disable the microphone.
Brightness down icon (Sun outline)	Decrease screen brightness.
Brightness up icon (Sun filled)	Increase screen brightness.
Display icon (Monitor/Laptop)	Select and set up display devices.
Mode (Moon/Battery icon)	Change power modes.
PrtSc	Print screen.
Snipping Tool icon (Scissors)	Open Snipping Tool.
Phone Link icon (Laptop/Phone)	Open Microsoft® Phone Link.
Star icon	Customize the function of this key on the Vantage app.

Other general keyboard shortcuts

Key combination	Function description
Copilot/Search icon	• Launch Copilot in Windows. • Launch Windows Search. Note: The function varies by countries or regions.
Fn + Right Ctrl	Open the context menu of the current active app.
Fn + Calculator icon (T16 Gen 3)	Open the Calculator (for ThinkPad T16 Gen 3).
Fn + Moon icon (T16 Gen 3)	Put the computer to sleep (for ThinkPad T16 Gen 3).
Fn + Spacebar (Backlight icon)	Adjust the keyboard backlight.
Fn + Left Arrow (<)	Go to beginning.
Fn + Right Arrow (>)	Go to end.
Fn + Tab (Magnifier icon)	Open Magnifier.
Fn + 4	Enter sleep mode.
Fn + B	Break operation.
Fn + K	Scroll contents.
Fn + P	Pause operation.
Fn + S	Send system request.
Fn + N	Open system information Window.

You can customize keyboard settings in Vantage app. To customize detailed settings, open the Vantage app, and then click Device → Input & Accessories.

For more keyboard shortcuts, go to https://support.lenovo.com/us/en/solutions/windows-support.

The following components are located on the front view:

Item	Description	Item	Description
Microphone icon	Microphone*	Camera icon	Infrared camera* / camera*
Webcam shutter icon	Webcam privacy shutter*	Hand pointing icon	Touch screen*
Power button icon	Power button with fingerprint reader*	TrackPoint icon	TrackPoint® pointing stick
Speaker icon	Speaker	NFC icon	NFC (near field communication) mark*
Trackpad icon	Trackpad	TrackPoint buttons icon	TrackPoint Three Buttons

* for selected models

The top side features the following components:

Item	Description
Microphone*	Captures audio input.
Webcam privacy shutter	Covers the camera lens for privacy.
Power button with fingerprint reader*	Turns the computer on/off and allows fingerprint login.
NFC (near field communication) mark*	Indicates the area for NFC communication.
TrackPoint Three Buttons	Buttons used in conjunction with the TrackPoint pointing stick.
Infrared camera* / camera*	Captures video and images; IR camera supports facial recognition.
Touch screen*	Allows interaction with the display using touch gestures.
TrackPoint® pointing stick	Alternative pointing device to the trackpad.
Trackpad	Primary pointing device with multi-touch capabilities.

* for selected models

Slide the webcam privacy shutter to cover or uncover the camera lens. It is designed to protect your privacy.

The side connectors include:

Item	Description
USB-C® power connector (Thunderbolt™ 4)	Connects to power and Thunderbolt/USB-C devices. Note: For AMD models, when you connect a USB 3.2 Gen 2 device to this connector, the supported transfer rate is up to 10Gbps.
USB-A connector (USB 5Gbps, Always On USB)	Connects to USB-A devices; provides power even when the computer is off.
Smart-card* slot	Reads smart cards for authentication or data access.
USB-A connector (USB 5Gbps)	Connects to USB-A devices.
Security-lock slot	Attaches a compatible security lock.
HDMI™ connector	Connects to external displays via HDMI.
Audio connector	Connects headphones or headsets with a 3.5mm plug.
Nano-SIM-card* tray	Holds the nano-SIM card for cellular connectivity.
Ethernet connector	Connects to a wired network via an Ethernet cable.

* for selected models

Depending on many factors such as the processing capability of the host and peripheral devices, file attributes, and other factors related to system configuration and operating environments, the actual transfer rate using the various USB connectors on this device will vary and will be slower than the data rate listed in the connector name or below for each corresponding device.

USB device	Data rate (Gbps)
Thunderbolt 3	40
Thunderbolt 4	40

The Emergency-reset hole can help you recover the computer when it stops responding and you cannot turn it off by pressing the power button. Do the following to reset your computer:

1. Disconnect your computer from ac power.

2. Insert a straightened paper clip into the hole to cut off power supply temporarily.

3. Connect your computer to ac power and then turn on your computer.

Note: If your computer is still not responding, you can call Lenovo Customer Support Center to get further help.

CAUTION: When the computer is operating, it should be placed on a hard and flat surface with its bottom area not in contact with user’s bare skin. Under normal operating conditions, the temperature of the bottom surface will remain within an acceptable range as defined in IEC 62368-1, but such temperatures can still be high enough to cause discomfort or harm to the user if directly touched for over one minute at a time. As such, it is recommended that users avoid prolonged direct contact with the bottom of the computer.

You can resolve some problems with your product with a replacement part you can install yourself, called a “Customer Replaceable Unit” or “CRU.” Some CRUs are designated as self-service CRUs and others are designated as optional-service CRUs. Installation of self-service CRUs is your responsibility. For optional-service CRUs, you can either install the CRU yourself or you can request that a Service Provider install the CRU according to the warranty service for your product. If you intend on installing the CRU, Lenovo will ship the CRU to you. CRU information and replacement instructions are shipped with your product and are available from Lenovo at any time upon request. You can find a list of CRUs for your product in this Hardware Maintenance Manual. An electronic version of this manual can be found at https://support.lenovo.com. Click Documentation and then follow the on-screen instructions to find the manual for your product. You might be required to return the defective CRU. When return is required: (1) return instructions, a prepaid shipping label, and a container will be included with the replacement CRU; and (2) you might be charged for the replacement CRU if Lenovo does not receive the defective CRU within thirty (30) days of your receipt of the replacement CRU. See your Lenovo Limited Warranty documentation for full details.

Your computer contains the following types of CRUs and FRUs:

Self-service CRUs: Refer to parts that can be replaced easily by customer themselves or by trained service technicians at an additional cost.

Optional-service CRUs: Refer to parts that can be replaced by customers with a greater skill level. Trained service technicians can also provide service to replace the parts under the type of warranty designated for the customer’s machine.

FRUs: Refer to parts that are more complicated to replace and it is recommended that these parts should be replaced by trained service technicians. If customers elect to replace the FRU by themselves, we recommend that you ensure the correct instructions are carefully followed.

The Lenovo factory recovery USB key is used to restore the Microsoft Windows operating system. It might not come with the computer, and a user might order it from https://pcsupport.lenovo.com/lenovorecovery, though additional shipping and handling fees might apply.

For detailed FRU information, including part numbers, descriptions, and substitution part numbers, go to: https://support.lenovo.com/partslookup

Ensure that the following service tool kit is prepared before you service a notebook computer:

No.	Tool name	Tool type
1	Phillips-head screwdriver	Common tool
2	Conductive tweezers	Common tool
3	Pry tool	Common tool
4	Silicone grease	Consumable tool
5	Polyamide tape	Consumable tool
6	Mylar tape	Consumable tool
7	Eraser	Consumable tool
8	Electrical tape	Consumable tool
9	Double-sided tape	Consumable tool
10	Conductive tape	Consumable tool
11	Trackpad jig (this might come with Trackpad)	Consumable tool

Note: The silicone grease can be applied to the surfaces of the microprocessor and heat sink to eliminate air gaps. For parts with silicone grease applied, it is suggested that you apply new grease during the installation.

Loose screws can cause a reliability problem. In your computer, this problem is addressed with special nylon-coated screws that have the following characteristics:

• They maintain tight connections.

• They do not easily come loose, even with shock or vibration.

• They are harder to tighten.

Do the following when you service the computer:

• Keep the screw kit in your tool bag. For the part number of the screw kit, go to: https://support.lenovo.com/partslookup

Tighten screws as follows:

Plastic to plastic: Turn an additional angle of 90 degrees after the screw head touches the surface of the plastic part.

Logic card to plastic: Turn an additional angle of 180 degrees after the screw head touches the surface of the logic card.

Notes:

• Ensure that you use the correct screw. It is recommended to use new screws for replacements. If you have a torque screwdriver, tighten all screws firmly to the torque specified in the screw information table for each step.

• Ensure torque screwdrivers are calibrated correctly following country specifications.

Try the following method to get the serial number if you cannot find the serial number of the system unit on the bottom of the computer.

Note: For Intel models, before you perform the operation, ensure that the UEFI/Legacy setting within the Startup menu in the ThinkPad Setup program is set to UEFI Only.

Step 1. Connect a USB memory key to the computer.

Step 2. Go to https://www.lenovo.com/maintenanceutilities and follow the instructions on the screen to create a Maintenance Key. (Note: Only an authorized Lenovo service technician can access the above Web site.)

Step 3. Restart the computer.

Step 4. When the logo is displayed, press Esc. The ThinkPad Config Information Update Utility interface is displayed.

Step 5. Type 1 under Enter the action desired, then press Enter. The ThinkPad Serial Number Update Utility for Asset ID screen is displayed.

Step 6. Type 2 under Enter the action desired, then press Enter. The serial number of each device in your computer is displayed; the serial number of the system unit is listed as follows: 20– Serial number

Step 7. Record the serial number of the system unit.

Follow the instructions to restore the serial number of the system unit.

Step 1. Connect the Maintenance Key to the computer.

Step 2. When the logo is displayed, press Esc. The ThinkPad Config Information Update Utility interface is displayed.

Step 3. Type 1 under Enter the action desired, then press Enter. The ThinkPad Serial Number Update Utility for Asset ID screen is displayed.

Step 4. Type 1 under Enter the action desired, then press Enter. Then follow the instructions on the screen to restore the serial number of the system unit.

The Universally Unique Identifier (UUID) is a 128-bit number uniquely assigned to your computer at production and stored in the EEPROM of your system board. When you replace the system board, perform the following steps to create a new UUID for the system board if the system board does not have a UUID:

Note: For Intel models, before you perform the operation, ensure that the UEFI/Legacy setting within the Startup menu in the ThinkPad Setup program is set to UEFI Only.

Step 1. Connect a USB memory key to the computer.

Step 2. Go to https://www.lenovo.com/maintenanceutilities and follow the instructions on the screen to create a Maintenance Key. (Note: Only an authorized Lenovo service technician can access the above Web site.)

Step 3. Restart the computer.

Step 4. When the logo screen is displayed, press Esc. The ThinkPad Config Information Update Utility interface is displayed.

Step 5. Type 2 under Enter the action desired, then press Enter. The Auto UUID generation utility interface is displayed.

Step 6. Type y under Change UUID. OK? [Y/N], then press Enter. A new UUID is created and written. If a valid UUID already exists, it is not overwritten.

To check what ECAs (Engineering Change Announcements) have been previously applied to the machine, use the ECA Information Read/Write function on the LENOVO ThinkPad Hardware Maintenance Diskette or Maintenance Key.

Step 1. Insert the latest version of LENOVO ThinkPad Hardware Maintenance Diskette or Maintenance Key, and then restart the computer.

Step 2. From the main menu, select 6. Set ECA Information.

Step 3. To read the ECA information, select 2. Read ECA/rework number from EEPROM and follow the instructions on the screen. To read the box build date, select 5. Read box build date from EEPROM, and follow the instruction on the screen.

After an ECA has been applied to the machine, the EEPROM must be updated to reflect the ECA’s application. Use the latest version of LENOVO ThinkPad Hardware Maintenance Diskette or Maintenance Key to update the EEPROM.

Note: Only the ECA number is stored in the EEPROM. The machine type of the ECA is assumed to be the same as the machine type of the machine that had the ECA applied to it.

Step 1. Insert the latest version of LENOVO ThinkPad Hardware Maintenance Diskette or Maintenance Key, and then restart the computer.

Step 2. From the main menu, select 6. Set ECA Information.

Step 3. To write the ECA information, select 1. Write ECA/rework number from EEPROM, and follow the instructions on the screen. To write the box build date, select 4. Write box build date from EEPROM, and follow the instruction on the screen.

If the system board is being replaced, try to read the ECA information from the old system board and transfer the information to the new system. If the system board is inoperable, this will not be possible.

When removing or replacing a FRU, be sure to observe the following general guidelines:

1. Do not try to service any computer unless you have been trained and certified. An untrained person runs the risk of damaging parts.

2. Before replacing any FRU, review Chapter 7 “FRU replacement notices”.

3. Begin by removing any FRUs that have to be removed before replacing the failing FRU. Any such FRUs are listed at the beginning of each FRU replacement section. Remove them in the order in which they are listed.

4. Follow the correct sequence in the steps for removing a FRU, as given in the illustrations by the numbers in square callouts.

5. When turning a screw, turn it in the direction as given by the arrow in the illustration.

6. When removing a FRU, move it in the direction as given by the arrow in the illustration.

7. To put the new FRU in place, reverse the removal procedure and follow any notes that pertain to replacement.

8. When replacing a FRU, use the correct screws as shown in the replacement procedures.

DANGER: Before removing any FRU, turn off the computer, unplug all power cords from electrical outlets, disable the built-in battery, and then disconnect any interconnecting cables.

Attention:

• After replacing a FRU, do not turn on the computer until you have made sure that all screws, springs, and other small parts are in place and none are loose inside the computer. Verify this by shaking the computer gently and listening for rattling sounds. Metallic parts or metal flakes can cause electrical short circuits.

• The system board is sensitive to, and can be damaged by ESD. Before touching it, establish personal grounding by touching a ground point with one hand or by using an ESD strap.

Before replacing any FRU, ensure that you disable Fast Startup first.

Step 1. Go to Control Panel and view by Large icons or Small icons.

Step 2. Click Power Options, and then click Choose what the power buttons do on the left pane.

Step 3. Click Change settings that are currently unavailable at the top.

Step 4. If prompted by User Account Control (UAC), click Yes.

Step 5. Clear the Turn on fast startup check box, and then click Save changes.

Before replacing any FRU, ensure that you disable the built-in battery after disabling Fast Startup.

Step 1. Restart your computer. When the logo screen is displayed, immediately press F1 to enter the UEFI BIOS menu.

Step 2. Select Config → Power. The Power submenu is displayed.

Step 3. Select Disable built-in battery and press Enter.

Step 4. Select Yes in the Setup Confirmation window.

The built-in battery is disabled and the computer turns off automatically.

Wait three to five minutes to let the computer cool.

Notes: If your computer cannot enter the UEFI BIOS menu, you cannot disable the built-in battery. To avoid short circuit when you replace a part, it is recommended to do the following:

• For the built-in battery connected to the system board with cables: Disconnect the battery cables.

• For the built-in battery connected to the system board with combo connectors: Disconnect the connectors by removing the battery. For the removal procedure, refer to the built-in battery replacement instructions in this documentation.

Note: If the computer you are servicing has a nano-SIM card installed, remove the card with the tray together.

1. Insert a straightened paper clip into the hole next to the tray [1].

2. Push the paper clip in to release the tray [2].

3. Slide the tray out of the slot [3].

For access, do the following:

1. Disable the built-in battery. See “How do I disable the built-in battery?”.

2. Turn off the computer and disconnect the computer from ac power and all connected cables.

Follow the instructions to remove the keyboard:

Note: You might be instructed to slide the keyboard frame forward or backward in some of the following steps. In this case, ensure that you do not press or hold the keys while sliding the keyboard frame. Otherwise, the keyboard frame cannot be moved.

Step 1. Loosen the screws that secure the keyboard (located on the bottom of the computer).

Step 2. Push the keyboard in the direction as shown by arrows to release the latches from the keyboard bezel.

Step 3. Pivot the keyboard slightly upward [1] and then turn over the keyboard [2].

Step 4. Put the keyboard on the palm rest as shown and detach the connectors [1, 2, 3, 4]. Then, remove the keyboard.

Follow the instructions to install the keyboard:

Note: You might be instructed to slide the keyboard frame forward or backward in some of the following steps. In this case, ensure that you do not press or hold the keys while sliding the keyboard frame. Otherwise, the keyboard frame cannot be moved.

Step 1. Attach the connectors [1, 2, 3, 4] and then turn over the keyboard [5].

Step 2. Insert the keyboard into the keyboard bezel as shown. Ensure that the top edge of the keyboard (the edge that is close to the display) is under the keyboard bezel.

Step 3. Slide the keyboard in the direction as shown. Ensure that the latches are secured under the keyboard frame.

Step 4. Tighten the screws on the bottom of the computer to secure the keyboard.

Step 5. Connect the ac power adapter and all disconnected cables to the computer.

Note: Configure the keyboard language in UEFI BIOS.

Before you start, read Generic Safety and Compliance Notices.

Note: Do not remove the base cover assembly when your computer is connected to ac power. Otherwise, there might be a risk of short circuits.

For access, do the following:

1. Disable the built-in battery. See “How do I disable the built-in battery?”.

2. Turn off the computer and disconnect the computer from ac power and all connected cables.

3. Remove the nano-SIM-card tray if your computer comes with one. See “How do I remove the nano-SIM card and tray?”.

4. Close the computer display and turn over the computer.

Step 1. Loosen the captive screws [1]. Pry up the latches using a pry tool or your fingers [2] and remove the base cover assembly [3].

Note: Open the base cover assembly as shown with a pressure of less than 5 kg. Release the pressure immediately when the base cover hook is released.

Step 1. Align the base cover assembly with the chassis [1].

Step 2. Push the base cover assembly downwards until the latches click into place [2].

Step 3. Reinstall the screws in alphabetic order (a to g) to secure the base cover assembly.

If the computer does not start up after you reinstall the base cover assembly, disconnect the ac power adapter and then reconnect it to the computer.

Notes:

• Depending on the country or region of delivery, the labels might be slightly different from the ones in the illustration.

• The new base cover assembly FRU is shipped with a kit containing labels of several kinds. Apply those labels when you replace the base cover assembly. For the labels that are not shipped with the new base cover assembly, peel them from the old base cover assembly, and adhere them to the new one.

Refer to the diagram on page 80 of the PDF for label locations. Apply the corresponding labels (GEO label, SVT label, China CECP label, Asset tag, IMEI label, Genuine Microsoft label, S/N label, Service QR code, COA label, Country label, USA RTC Battery warning label) to the correct positions on the new base cover.

Attention: The M.2 solid-state drive is sensitive. Inappropriate handling might cause damage and permanent loss of data. When handling the M.2 solid-state drive, observe the following guidelines:

• Replace the M.2 solid-state drive only for repair. The M.2 solid-state drive is not designed for frequent changes or replacement.

• Before replacing the M.2 solid-state drive, make a backup copy of all the data that you want to keep.

• Do not apply pressure to the M.2 solid-state drive.

• Do not touch the contact edge or circuit board of the M.2 solid-state drive. Otherwise, the M.2 solid-state drive might get damaged.

• Do not make the M.2 solid-state drive subject to physical shocks or vibration. Put the M.2 solid-state drive on a soft material, such as cloth, to absorb physical shocks.

For access, remove this FRU: “Base cover assembly”.

Step 1. Remove the screw securing the M.2 solid-state drive [1]. The drive will pop up.

Step 2. Carefully pull the M.2 solid-state drive out of the slot [2].

Step 3. Install the new M.2 solid-state drive in reverse order.

The screw specifications vary depending on the drive type and model:

Model/Type	Screw (quantity)	Color	Torque
Type 1: T14 Gen 5 / P14s Gen 5 AMD	M2.0 x 2.5 mm, flat-head, nylon-coated (1)	Black	0.18 Nm (1.85 kgf-cm)
Type 1: T16 Gen 3	M2.0 x 3.5 mm, flat-head, nylon-coated (1)	Black	0.18 Nm (1.85 kgf-cm)
Type 2: T14 Gen 5 / P14s Gen 5 AMD	M2.0 x 2.5 mm, flat-head, nylon-coated (1)	Black	0.18 Nm (1.85 kgf-cm)
Type 2: T16 Gen 3	M2.0 x 3.5 mm, flat-head, nylon-coated (1)	Black	0.18 Nm (1.85 kgf-cm)

For access, remove these FRUs:

1. Remove the base cover assembly.

2. Remove the M.2 solid-state drive.

Step 1. Remove the M.2 solid-state drive bracket as shown in the illustration. Step 2. Install the M.2 solid-state drive bracket in reverse order.

For access, remove this FRU: “Base cover assembly”.

Attention: Do not touch the contact edge of the memory module. Otherwise, the memory module might get damaged.

Step 1. Remove the memory module shielding cap by lifting it off the system board. Step 2. Install the memory module shielding cap by placing it back onto the system board.

Note: Ensure that the arrows on the memory module shielding cap point upwards towards the direction of the thermal fan assembly. Otherwise, the memory module shielding cap cannot be installed correctly.

Before you start, read Generic Safety and Compliance Notices.

Attention: Do not touch the contact edge of the memory module. Otherwise, the memory module might get damaged.

For access, remove these FRUs:

1. “Base cover assembly”

2. “Memory module shielding cap”

Note: Ensure that you follow the installation order for memory modules shown in the following table.

Memory modules	Installation order
one	Slot 1
two	Slot 1 and slot 2

Step 1. Open the retention clips on both sides of the memory module slot simultaneously [1]. The memory module will pop up.

Step 2. Remove the memory module from the slot [2].

Step 3. Install the new memory module: Align the notch on the module with the key in the slot and insert the module [1]. Press the module down until the retention clips snap into place [2].

The following information is only for the computer with user-installable modules. Ensure that you use only a Lenovo-authorized wireless module specifically tested for this computer model. Otherwise, the computer will generate an error-code beep sequence when you turn on the computer.

Notes:

• Wireless WAN ready model identifies that product has preinstalled wireless WAN antennas and allows a user-installable wireless WAN module.

• Only wireless WAN model or wireless WAN ready model is allowed to install the optional Lenovo wireless WAN module.

Before you start, read Generic Safety and Compliance Notices.

Attention: Do not touch the contact edge of the wireless WAN card. Otherwise, the wireless WAN card might get damaged.

For access, remove this FRU: “Base cover assembly”.

Step 1. Remove the wireless WAN module:

Note: A Mylar film might cover the wireless WAN module. To access the wireless WAN module, peel off the film first.

a. Carefully detach the wireless antenna cables from the module [1].

b. Remove the screw securing the module [2]. The module will pop up.

c. Remove the wireless WAN module from the slot [3].

The screw specifications vary depending on the model:

Model/Type	Screw (quantity)	Color	Torque
T14 Gen 5 / P14s Gen 5 AMD (4G/5G)	M2.0 x 2.5 mm, flat-head, nylon-coated (1)	Black	0.18 Nm (1.85 kgf-cm)
T16 Gen 3 (4G/5G)	M2.0 x 3.5 mm, flat-head, nylon-coated (1)	Black	0.18 Nm (1.85 kgf-cm)

Step 2. Install the wireless WAN module in reverse order.

Ensure that the antenna cables are installed appropriately:

• The blue cable is connected to the connector labeled Blue on the module.

• The black and grey cable is connected to the connector labeled Black Grey on the module.

• The white and grey cable is connected to the connector labeled White Grey on the module.

• The orange cable is connected to the connector labeled Orange on the module.

Before you start, read Generic Safety and Compliance Notices.

Attention: Do not touch the contact edge of the memory module. Otherwise, the memory module might get damaged.

For access, remove this FRU:

1. “Base cover assembly”

2. “Wireless WAN card (for selected models)”

Step 1. Remove the wireless-WAN-module bracket as shown in the illustration. Step 2. Install the wireless-WAN-module bracket in reverse order.

CAUTION: Use only the Lenovo-authorized battery specified for the computer. Any other battery could ignite or explode.

Batteries supplied by Lenovo for use with your product have been tested for compatibility and should only be replaced with approved parts. A battery other than the one specified by Lenovo, or a disassembled or modified battery may not be covered by warranty. Battery abuse or mishandling can cause overheat, liquid leakage, or an explosion. To avoid possible injury:

• Do not open, disassemble or service any battery unless you are competent to do so and ensure that you carefully follow all instructions provided by Lenovo.

• Do not crush or puncture the battery.

• Do not short-circuit the battery, or expose it to water or other liquids.

• Keep the battery away from children.

• Keep the battery away from fire.

• Stop using the battery if it is damaged, or if you notice any discharge or the buildup of foreign materials on the battery leads.

• Store the rechargeable batteries or products containing the rechargeable batteries at room temperature, charged to approximately 30 to 50% of capacity. We recommend that the batteries be charged about once per year to prevent overdischarge.

• Do not put the battery in trash that is disposed of in landfills. When disposing of the battery, comply with local ordinances or regulations.

• If the battery is incorrectly replaced, there is danger of an explosion. The battery contains a small amount of harmful substances.

Lenovo recommends you use a qualified repair technician or ensure that you carefully follow all instructions provided by Lenovo. The Lenovo-authorized repair facilities or technicians recycle Lenovo batteries according to local laws and regulations. Please do not dispose of your battery with your household waste. For recycling information go to https://www.lenovo.com/recycling.

Attention: Lenovo has no responsibility for the performance or safety of unauthorized batteries, and provides no warranties for failures or damage arising out of their use.

The Vantage app provides an automatic battery diagnostic test that determines if the built-in battery is defective. A built-in battery should not be replaced unless this diagnostic test shows that the battery is defective. The only exception to this is if the built-in battery is physically damaged or a customer is reporting a possible safety issue. If the Vantage app is not installed on the computer, the customer should download and install the program to diagnose the built-in battery, before replacing a non-physically damaged built-in battery. Note that the replacement of a physically damaged built-in battery is not covered by the warranty.

Important notice for replacing a battery: Attention: Only large-capacity built-in battery with grey mylar on the front of the battery can be replaced by customers (CRUable). Refer to the tables below for details.

For ThinkPad T14 Gen 5 and ThinkPad P14s Gen 5 AMD:

CRUable or Non-CRUable	Battery capacity	Color on the front
CRUable	52.5 W	Grey
Non-CRUable	39.3 W	Black

For ThinkPad T16 Gen 3:

CRUable or Non-CRUable	Battery capacity	Color on the front
CRUable	86 W	Grey
Non-CRUable	52.5 W	Black

For access, remove this FRU: “Base cover assembly”.

Step 1. Disconnect the battery connector from the system board [1]. Lift the battery out [2].

Note: You can scan the QR code on the CRUable built-in battery to view the battery replacement video.

Step 2. Before installing the built-in battery, thoroughly check the battery compartment and ensure that there are no foreign or sharp objects that could cause damage to the battery. Step 3. Install the built-in battery in reverse order.

When installing:

• Ensure that the connector is attached firmly.

• Ensure that the base cover assembly is secured in place. Otherwise, the battery connection might fail.

Before you start, read Generic Safety and Compliance Notices. For access, remove these FRUs in order:

1. “Base cover assembly”

2. “Built-in battery”

Step 1. Disconnect the speaker assembly cable from the system board [1]. Release the speaker cable from the guides [2]. Depending on the model, release the latches or remove screws securing the speaker assembly [3, 5]. Remove the speaker assembly [4, 6, 7]. Step 2. Install the new speaker assembly in reverse order.

Step 2. Install the wireless WAN antennas in reverse order. When installing, ensure that the connector is attached firmly.

Attention: When you route the cables, ensure that they are not subject to any tension. Tension could cause the cables to be damaged by the cable guides, or a wire to be broken.

When handling the system board, read the following:

• Some components mounted on a system board are very sensitive. Improper handling of a system board can cause damage to those components, and may cause a system malfunction.

• The system board has an accelerometer, which can be broken when several thousands of G-forces are applied.

Note: Dropping a system board from a height of as little as 6 inches so that it falls flat on a hard bench can subject the accelerometer to as much as 6000 G’s of shock.

• Be careful not to drop the system board on a bench top that has a hard surface, such as metal, wood, or composite.

• Avoid rough handling of any kind.

• At every point in the process, be sure not to drop or stack the system board.

• If you put a system board down, be sure to put it only on a padded surface such as an ESD mat or a corrugated conductive surface.

• Avoid bending a system board and hard pushing to prevent cracking at each BGA (Ball Grid Array) chipset.

For access, remove these FRUs in order:

• “Removing the nano-SIM card and nano-SIM-card tray”

• “Keyboard”

• “Base cover assembly”

• “M.2 solid-state drive”

• “Memory module shielding cap”

• “Memory module”

• “Wireless WAN card (for selected models)”

• “Built-in battery”

• “Speaker assembly”

• “Coin-cell battery”

• “Smart card reader and cable”

• “Trackpad and Trackpad cable”

• “NFC card and cables”

• “I/O bracket”

• “Thermal fan assembly”

• “USB board cable, USB board, and RJ45 door bracket”

• “Power button with or without fingerprint reader”

• “Wireless WAN antennas (for selected models)”

Table 15. For Intel models

Product name	Machine type (MT)
ThinkPad T14 Gen 5	21ML and 21MM
ThinkPad T16 Gen 3	21MN and 21MQ

Note: This computer shares a common system board with another computer. After replacing the system board, you will be prompted to input a brand name to correctly identify the machine type. Input the exact brand name as shown in this table.

Table 16. For AMD models

Product name	Machine type (MT)
ThinkPad T14 Gen 5	21MC and 21MD
ThinkPad P14s Gen 5 AMD	21ME and 21MF

Note: This computer shares a common system board with another computer. After replacing the system board, you will be prompted to input a brand name to correctly identify the machine type. Input the exact brand name as shown in this table.

Follow the instructions to replace the system board. Before you start, read Generic Safety and Compliance Notices and print the following instructions.

Step 1. Remove the system board as shown in the diagrams.

ThinkPad T14 Gen 5 and ThinkPad P14s Gen 5 AMD Screw Specifications:

Step	Screw (quantity)	Color	Torque
11	M2.0 × 3.0mm, flat-head, nylon-coated (3)	Silver	0.18 Nm (1.85 kgf-cm)

ThinkPad T16 Gen 3 Screw Specifications:

Step	Screw (quantity)	Color	Torque
12	M2.0 x 3.5mm, flat-head, nylon-coated (3)	Black	0.18 Nm (1.85 kgf-cm)

Step 2. Install the system board in reverse order.

Notes:

• Ensure that the cable is attached firmly.

• Apply thermal grease if needed. For details, see “Thermal fan assembly”.

Follow the instructions to configure keyboard language in UEFI BIOS.

Step 1. Enter the UEFI BIOS menu.

Step 2. Click Config → Keyboard/Mouse → Keyboard Layout, and then select the keyboard language.

To restore the BIOS configuration, you are required to input the Machine Type Model (MTM) and Serial Number (SN), select the product name and keyboard language of the computer after replacing a system board. For more details about the tool, go to: https://support.lenovo.com/us/en/solutions/ht516543

Note: Ensure that the correct product information is input into the tool. The input cannot be edited by end users once confirmed through the tool. If the user exits during the process, the computer will shut down, and the tool will be launched again automatically each time the computer is turned on until the input is confirmed. The process of writing product information can only be used once and if unsure, consider getting support from a Lenovo-authorized service technician.

Step 1. Connect the ac power adapter and turn on the computer. The tool will be started automatically.

Step 2. Follow the on-screen instructions to input the MTM and SN, select the product name and keyboard language of the computer.

Step 3. Click YES in the confirmation window and the tool will start to restore the BIOS configuration. The configuration process takes a few minutes to complete. When the BIOS configuration is finished, the computer will restart automatically. Do not turn off the computer and disconnect the computer from ac power during the whole process.

Follow the instructions to replace the LCD unit. Before you start, read Generic Safety and Compliance Notices.

For access, remove these FRUs:

• “Base cover assembly”

• “I/O bracket”

Step 1. Remove the LCD unit as shown in the diagrams.

ThinkPad T14 Gen 5 and ThinkPad P14s Gen 5 AMD Screw Specifications:

Step	Screw (quantity)	Color	Torque
7	M2.5 x 4.5mm, flat-head, nylon-coated (6)	Black	0.29 Nm (3.0 kgf-cm)

ThinkPad T16 Gen 3 Screw Specifications:

Step	Screw (quantity)	Color	Torque
7	M2.5 × 6.0mm, flat-head, nylon-coated (6)	Black	0.29 Nm (3.0 kgf-cm)

Step 2. Install the LCD unit in reverse order. When installing, ensure that the connectors are attached firmly.

Attention: When you route the cables, ensure that they are not subject to any tension. Tension could cause the cables to be damaged by the cable guides, or a wire to be broken.

Note: For ThinkPad P14s Gen 5 AMD, OLED LCD unit comes with the factory color calibration feature, do the following to install new color profiles:

1. Connect your computer to a network and close the X-Rite Color Assistant program.

2. Go to C:\Program files (x86)\X-Rite Color Assistant and locate the ProfileUpdaterForDisplayReplacement exe file.

3. Double-click the EXE file. Follow the on-screen instructions to input the display serial number and click Submit. You can find the display serial number and instructions on a sticker affixed to the front of the new LCD part. When the new color profiles are installed successfully, a prompted window will be displayed.

For access, remove these FRUs:

• “Removing the nano-SIM card and nano-SIM-card tray”

• “Keyboard”

• “Base cover assembly”

• “M.2 solid-state drive”

• “Memory module shielding cap”

• “Memory module”

• “Wireless WAN card (for selected models)”

• “Built-in battery”

• “Speaker assembly”

• “Coin-cell battery”

• “Smart card reader and cable”

• “Trackpad and Trackpad cable”

• “NFC card and cables”

• “I/O bracket”

• “Thermal fan assembly”

• “USB board cable, USB board, and RJ45 door bracket”

• “Power button with or without fingerprint reader”

• “Wireless WAN antennas (for selected models)”

• “System board”

• “LCD unit”

Follow the instructions to replace the LCD bezel sheet and LCD bezel. Before you start, read Generic Safety and Compliance Notices.

For access, remove these FRUs:

• “Base cover assembly”

• “I/O bracket”

• “LCD unit”

Step 1. Remove the LCD bezel sheet and LCD bezel as shown in the diagrams (prying points labeled 1).

Step 2. Install the LCD bezel sheet and LCD bezel in reverse order. When installing, ensure that all the latches are attached firmly.

Note: After the LCD bezel sheet is removed it can be reused.

Follow the instructions to replace the LCD hinges. Before you start, read Generic Safety and Compliance Notices.

For access, remove these FRUs:

• “Base cover assembly”

• “I/O bracket”

• “LCD unit”

• “LCD bezel sheet and LCD bezel”

Step 1. Remove the LCD hinges as shown in the diagrams (screw removal step 1, hinge removal step 2).

ThinkPad T14 Gen 5 and ThinkPad P14s Gen 5 AMD Screw Specification:

Table 17. Screw specification

Step	Screw (quantity)	Color	Torque
1	M2.5 x 3.5 mm, flat-head, nylon-coated (6)	Black	0.29 Nm (3.0 kgf-cm)

ThinkPad T16 Gen 3 Screw Specification:

Table 18. Screw specification

Step	Screw (quantity)	Color	Torque
1	M2.5 x 3.5 mm, flat-head, nylon-coated (6)	Black	0.29 Nm (3.0 kgf-cm)

Step 2. Install the LCD hinges in reverse order.

Follow the instructions to replace the LCD panel and elastic adhesive tapes. Before you start, read Generic Safety and Compliance Notices.

For access, remove these FRUs in order:

• “Base cover assembly”

• “I/O bracket”

• “LCD unit”

• “LCD bezel sheet and LCD bezel”

• “LCD hinges”

Removal steps:

Step 1. Pull out each tape slowly in the direction as shown until the adhesive tapes are all released from LCD unit. Note: Do not pull the tapes too fast, otherwise, the tapes might snap.

Step 2. Turn over the LCD panel and detach the LCD cable from the LCD panel as shown (detach connector [2], lift tape [3], lift lever [4]).

Installation steps:

Step 1. Peel off the release liners from one side of the new elastic adhesive tapes. Apply the tapes to the correct locations. Peel off the release liners from the other side of the tapes. Ensure that the tapes are applied correctly as shown (apply tapes [2] after peeling liner [1], prepare other side [3]).

Step 2. Attach the LCD cable to the LCD panel as shown. Turn over the LCD panel to secure the LCD panel with tapes (attach connector [6], secure with tape [5] after closing lever [4]).

Follow the instructions to install new color profiles for LCD panel with the factory color calibration feature.

Step 1. Connect your computer to a network and close the X-Rite Color Assistant program.

Step 2. Go to C:\Program files (x86)\X-Rite Color Assistant and locate the ProfileUpdaterForDisplayReplacement exe file.

Step 3. Double-click the EXE file. Follow the on-screen instructions to input the display serial number and click Submit. You can find the display serial number and instructions on a sticker affixed to the front of the new LCD part. When the new color profiles are installed successfully, a prompted window will be displayed.

On Linux operating system based computers:

1. If color calibration profiles need to be reinstalled on a system, go to https://support.lenovo.com/us/en/solutions/HT517038 to know the details.

2. If a panel is replaced and color calibration profiles need updating for the new panel, go to https://support.lenovo.com/us/en/solutions/HT517060 to know the details.

Follow the instructions to replace the LCD cable. Before you start, read Generic Safety and Compliance Notices.

For access, remove these FRUs in order:

• “Base cover assembly”

• “I/O bracket”

• “LCD unit”

• “LCD bezel sheet and LCD bezel”

• “LCD hinges”

• “LCD panel and elastic adhesive tapes”

Step 1. Remove the LCD cable as shown in the diagram (detaching cable from LCD back).

Step 2. Install the LCD cable in reverse order.

Follow the instructions to replace the camera-and-microphone module and cable. Before you start, read Generic Safety and Compliance Notices.

For access, remove these FRUs in order:

• “Base cover assembly”

• “I/O bracket”

• “LCD unit”

• “LCD bezel sheet and LCD bezel”

• “LCD hinges”

• “LCD panel and elastic adhesive tapes”

Step 1. Remove the camera-and-microphone module as shown in the diagrams (detach connector [1], peel tape [2], remove module [3]).

Step 2. Remove the camera-and-microphone-module cable as shown in the diagrams (peel cable [4] from the back of the LCD cover).

Step 3. Install the camera-and-microphone module and cable in reverse order.

Follow the instructions to replace the wireless LAN antenna assembly. Before you start, read Generic Safety and Compliance Notices.

For access, remove these FRUs in order:

• “Base cover assembly”

• “I/O bracket”

• “LCD unit”

• “LCD bezel sheet and LCD bezel”

• “LCD hinges”

• “LCD panel and elastic adhesive tapes”

Step 1. Remove the wireless LAN antenna assembly as shown in the diagrams (removing antenna modules labeled 1 and/or 2).

Step 2. Install the wireless LAN antenna assembly in reverse order.

Attention: When you route the cables, ensure that they are not subject to any tension. Tension could cause the cables to be damaged by the cable guides, or a wire to be broken.

The illustration shows the antenna locations. The legend is as follows:

1 Wireless LAN main antenna (gray)

2 Wireless LAN auxiliary antenna (black)

3 Wireless WAN MIMO 2 antenna* (black and gray)

4 Wireless WAN auxiliary antenna* (blue)

5 Wireless WAN MIMO 1 antenna* (white and gray)

6 Wireless WAN main antenna* (orange)

* for selected models

The illustration shows the antenna locations. The legend is as follows:

1 Wireless LAN main antenna (gray)

2 Wireless LAN auxiliary antenna (black)

3 Wireless WAN auxiliary antenna* (blue)

4 Wireless WAN MIMO 2 antenna* (black and gray)

5 Wireless WAN main antenna* (orange)

6 Wireless WAN MIMO 1 antenna* (white and gray)

* for selected models

For access, remove these FRUs in order:

• “Base cover assembly”

• “I/O bracket”

• “LCD unit”

• “LCD bezel sheet and LCD bezel”

• “LCD hinges”

• “LCD panel and elastic adhesive tapes”

• “LCD cable”

• “Camera-and-microphone module and cable”

• “Wireless LAN antenna assembly”

The USB Implementers Forum published a revision of the guideline for USB connector names in September, 2022. Lenovo follows the revised guideline and updates USB connector names accordingly. You can refer to the table below for naming update details.

Current name	Previous name
USB-A connector (Hi-Speed USB)	USB-A 2.0 connector
USB-A connector (USB 5Gbps)	USB-A 3.2 Gen 1 connector
USB-A connector (USB 10Gbps)	USB-A 3.2 Gen 2 connector
USB-A connector (USB 5Gbps, Always On USB)	Always on USB-A 3.2 Gen 1 connector
USB-A connector (USB 10Gbps, Always On USB)	Always on USB-A 3.2 Gen 2 connector
USB-C connector (USB 5Gbps)	USB-C (3.2 Gen 1) connector
USB-C connector (USB 10Gbps)	USB-C (3.2 Gen 2) connector
USB-C connector (USB 20Gbps)	USB 3.2 Gen 2×2
USB-C connector (USB4 20Gbps)	USB 4 Gen 2×2
USB-C connector (USB4 40Gbps)	USB-C (USB 4) connector
USB-C connector (Thunderbolt 3)	USB-C (Thunderbolt 3) connector
USB-C connector (Thunderbolt 4)	USB-C (Thunderbolt 4) connector

LENOVO PROVIDES THIS PUBLICATION “AS IS” WITHOUT WARRANTY OF ANY KIND, EITHER EXPRESS OR IMPLIED, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF NON-INFRINGEMENT, MERCHANTABILITY OR FITNESS FOR A PARTICULAR PURPOSE. Some jurisdictions do not allow disclaimer of express or implied warranties in certain transactions, therefore, this statement may not apply to you.

The products described in this document are not intended for use in implantation or other life support applications where malfunction may result in injury or death to persons.

Any performance data contained herein was determined in a controlled environment. Therefore, the result obtained in other operating environments may vary significantly. Some measurements may have been made on development-level systems and there is no guarantee that these measurements will be the same on generally available systems. Furthermore, some measurements may have been estimated through extrapolation. Actual results may vary. Users of this document should verify the applicable data for their specific environment.

The following table lists all abbreviations used in this manual.

Abbreviation	Term
BGA	Ball Grid Array
CMOS	Complementary Metal Oxide Semiconductor
CMV	Custom Model Variant
CRC	Cyclic redundancy check
CRT	Cathode ray tube
CRU	Customer Replaceable Unit
СТО	Configure To Order
EAIA	Enhanced Asset Information Area
EEPROM	Electrically Erasable Programmable Read-Only Memory
EFI	Extensible Firmware Interface
ESD	Electrostatic discharge
FRU	Field Replaceable Unit
GAV	General Announce Variant
IC	Integrated circuits
LCD	Liquid Crystal Display
MTM	Machine type and model
POST	Power-on self-test
RFID	Radio-frequency identification
SVP	Supervisor password
UUID	Universally unique identifier

Before you start, read Generic Safety and Compliance Notices.

Step 1. Remove the speaker assembly screws.

ThinkPad T16 Gen 3 Screw Specifications:

Step	Screw (quantity)	Color	Torque
5	M2.0 x 2.5 mm, flat-head, nylon-coated (4)	Black	0.18 Nm (1.85 kgf-cm)
7	M2.0 x 2.5 mm, flat-head, nylon-coated (2)	Black	0.18 Nm (1.85 kgf-cm)

Step 2. Install the speaker assembly in reverse order.

Note: When installing the speaker cable, ensure that you route it properly into the cable guide.

DANGER: Use only the Lenovo authorized battery specified for the computer. Any other battery could ignite or explode.

Before you start, read Generic Safety and Compliance Notices.

For access, remove these FRUs in order:

1. “Base cover assembly”

2. “Built-in battery”

Step 1. Remove the coin-cell battery as shown in the diagram (disconnect connector [1], release latch [2], remove battery [3]).

Step 2. Install the coin-cell battery in reverse order.

Note:

• Ensure that the connector is attached firmly.

• Reset the system date and time in the BIOS menu.

Follow the instructions to replace the dummy smart card reader. Before you start, read Generic Safety and Compliance Notices.

For access, remove these FRUs in order:

1. “Base cover assembly”

2. “Built-in battery”

Step 1. Remove the dummy smart card reader as shown in the diagram (slide out reader [1], remove it [2]).

Step 2. Install the dummy smart card reader in reverse order.

Follow the instructions to replace the smart card reader. Before you start, read Generic Safety and Compliance Notices.

For access, remove these FRUs in order:

1. “Base cover assembly”

2. “Built-in battery”

Step 1. Remove the smart card reader and cable as shown in the diagrams (disconnect cables [1-5], remove screws [6], remove reader [7]).

Screw Specifications (Step 6):

Screw (quantity)	Color	Torque
M1.6 x 2.1 mm, flat-head, nylon-coated (2)	Black	0.1 Nm (1.1 kgf-cm)

Step 2. Install the smart card reader and cable in reverse order.

Note: Ensure that the connectors are attached firmly.

Follow the instructions to replace the Trackpad and Trackpad cable. Before you start, read Generic Safety and Compliance Notices.

For access, remove these FRUs in order:

1. “Base cover assembly”

2. “Built-in battery”

Removal steps:

Step 1. Remove the Trackpad cable as shown in the diagrams (disconnect connectors and peel cable).

Step 2. Remove the waterproof mylar, if any (for T14/P14s models).

Step 3. Remove the Trackpad screws as shown in the diagrams.

ThinkPad T14 Gen 5 and ThinkPad P14s Gen 5 AMD Screw Specifications (Step 10):

Screw (quantity)	Color	Torque
M1.6 x 2.1 mm, flat-head, nylon-coated (7)	Black	0.1 Nm (1.1 kgf-cm)

ThinkPad T16 Gen 3 Screw Specifications (Step 12):

Screw (quantity)	Color	Torque
M1.6 x 2.1 mm, flat-head, nylon-coated (7)	Black	0.1 Nm (1.1 kgf-cm)

Step 4. Remove the Trackpad.

Installation steps:

Step 1. A Trackpad jig might come with the Trackpad. Attach the Trackpad jig to the Trackpad and bend the four angles as shown by arrows.

Step 2. Install the Trackpad with jig into position.

Step 3. Install the screws to fix the Trackpad.

Screw Specifications (Step 3 for both T14/P14s and T16):

Screw (quantity)	Color	Torque
M1.6 x 2.1 mm, flat-head, nylon-coated (7)	Black	0.1 Nm (1.1 kgf-cm)

Step 4. A waterproof mylar might cover the Trackpad. Ensure that you attach the mylar to the Trackpad (for T14/P14s models).

Step 5. Install the Trackpad cable. Note: Ensure that the connector is attached firmly.

Step 6. Remove the jig.

Follow the instructions to replace the NFC card and cables. Before you start, read Generic Safety and Compliance Notices.

For access, remove these FRUs in order:

1. “Base cover assembly”

2. “Built-in battery”

Step 1. Remove the NFC card and cable as shown in the diagram (disconnect connectors [1-5], remove module/cable [6, 7]).

Step 2. Install the NFC card and cable in reverse order.

Before you start, read Generic Safety and Compliance Notices.

For access, remove this FRU:

• “Base cover assembly”

Step 1. Remove the I/O bracket as shown in the diagrams (remove screws [1], remove bracket [2]).

Screw Specifications (Step 1 for both T14/P14s and T16):

Screw (quantity)	Color	Torque
M2.0 x 3.5 mm, flat-head, nylon-coated (3)	Black	0.18 Nm (1.85 kgf-cm)

Step 2. Install the I/O bracket in reverse order.

Before you start, read Generic Safety and Compliance Notices.

For access, remove this FRU:

• “Base cover assembly”

Step 1. Remove the thermal fan as shown in the diagrams (disconnect connector [1, 2], remove screws [5a-e, 6], lift assembly [3, 4]).

Step 2. Install the heat sink (thermal fan assembly) in reverse order.

Note:

• Reinstall the screws in alphabetic order (a to e).

• Ensure that the connector is attached firmly.

• Do not press the top of the fan cover and the fan hub.

• If you are installing back the same thermal fan assembly you have removed (not installing a new one), before you attach the assembly to the computer, clean all thermal grease that have been used and then apply new thermal grease. Apply new thermal grease (type: Shin-Etsu X23-7783D) at an amount of 0.2 grams, on the parts marked [a] as shown in the illustrations. Either too much or too less application of grease can cause a thermal problem due to imperfect contact with a component.

Before you start, read Generic Safety and Compliance Notices.

For access, remove these FRUs:

• “Base cover assembly”

Step 1. Remove the RJ45 door bracket, USB board cable, and USB board as shown in the diagrams.

ThinkPad T14 Gen 5 and ThinkPad P14s Gen 5 AMD Screw Specifications:

Step	Screw (quantity)	Color	Torque
1	M2.0 x 7.4mm, flat-head, nylon-coated (2)	Black	0.18 Nm (1.85 kgf-cm)
2	M2.0 x 3.0mm, flat-head, nylon-coated (4)	Silver	0.18 Nm (1.85 kgf-cm)
8	M2.0 × 3.0mm, flat-head, nylon-coated (1)	Silver	0.18 Nm (1.85 kgf-cm)

ThinkPad T16 Gen 3 Screw Specifications:

Step	Screw (quantity)	Color	Torque
1	M2.0 x 7.4mm, flat-head, nylon-coated (2)	Black	0.18 Nm (1.85 kgf-cm)
2	M2.0 x 3.5mm, flat-head, nylon-coated (1)	Black	0.18 Nm (1.85 kgf-cm)
9	M2.0 x 3.5 mm, flat-head, nylon-coated (1)	Black	0.18 Nm (1.85 kgf-cm)

Step 2. Install the USB board cable, USB board, and USB board bracket in reverse order.

Follow the instructions to replace the power board and power button with or without fingerprint reader. Before you start, read Generic Safety and Compliance Notices.

For access, remove these FRUs in order:

1. “Base cover assembly”

2. “USB board cable, USB board, and RJ45 door bracket”

Step 1. Remove the power button with or without fingerprint reader as shown in the diagrams (remove screws [1], remove module [2]).

ThinkPad T14 Gen 5 and ThinkPad P14s Gen 5 AMD Screw Specifications (Step 1):

Screw (quantity)	Color	Torque
M2.0 x 2.3 mm, flat-head, nylon-coated (2)	Black	0.18 Nm (1.85 kgf-cm)

ThinkPad T16 Gen 3 Screw Specifications (Step 1):

Screw (quantity)	Color	Torque
M2.0 x 2.5mm, flat-head, nylon-coated (2)	Black	0.18 Nm (1.85 kgf-cm)

Step 2. Install the power button with or without fingerprint reader in reverse order.

Follow the instructions to replace the power button bracket. Before you start, read Generic Safety and Compliance Notices.

For access, remove these FRUs in order:

1. “Base cover assembly”

2. “USB board cable, USB board, and RJ45 door bracket”

3. “Power button with or without fingerprint reader”

Step 1. Remove the power button bracket as shown in the diagram (lift the bracket).

Step 2. Install the power button bracket in reverse order.

Follow the instructions to replace the wireless WAN antennas. Before you start, read Generic Safety and Compliance Notices.

For access, remove these FRUs:

• “Base cover assembly”

• “Built-in battery”

Step 1. Remove the wireless WAN antennas as shown in the diagrams (disconnect connectors [1, 2, 3], remove screws [5, 6], route cables [4]).

ThinkPad T14 Gen 5 and ThinkPad P14s Gen 5 AMD Screw Specifications (Step 5):

Screw (quantity)	Color	Torque
M2.0 x 3.0 mm, flat-head, nylon-coated (2)	Silver	0.18 Nm (1.85 kgf-cm)

Step 2. Install the wireless WAN antennas in reverse order. When installing, ensure that the connector is attached firmly.

Attention: When you route the cables, ensure that they are not subject to any tension. Tension could cause the cables to be damaged by the cable guides, or a wire to be broken.