LENOVO V15 G4 IAN 2 (01) PDF DOCUMENT

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 below for each corresponding device.

Maximum altitude (without pressurization)

3048 m (10 000 ft)

Temperature

• At altitudes up to 2438 m (8000 ft)

– Operating: 5°C to 35°C (41°F to 95°F)

– Storage: 5°C to 43°C (41°F to 109°F)

• At altitudes above 2438 m (8000 ft)

– Maximum temperature when operating under the unpressurized condition: 31.3°C (88°F)

Note: When you charge the battery, its temperature must be no lower than 10°C (50°F).

Relative humidity

• Operating: 8% to 95% at wet-bulb temperature 23°C (73°F)

• Storage: 5% to 95% at wet-bulb temperature 27°C (81°F)

To configure settings, type the corresponding keywords in the Windows search box and select the best match. Follow the on-screen instructions to customize settings.

These are all apps developed by Lenovo. Using any one of them, you can:

• View product information and system status

• Manage and change device settings

• Check for and perform system update

Note: This feature is only available on Lenovo Vantage. In Lenovo PC Manager or Lenovo Smart Engine, you can check for and perform driver update.

To open one of these apps, type its name in the Windows Search box and select the matched result.

The Novo Button menu can be displayed before the operating system starts. From the menu, you can choose to:

• Open the BIOS/UEFI setup utility

• Open the boot device selection menu

• Open the Windows startup options screen

From the Windows startup options screen, you can then choose to:

• Start your computer using a recovery drive

• Reset your computer

• Open advanced options screen

For Lenovo computers with a Novo button, you can press the button to open the Novo Button menu.

Step 1. Turn off the computer.

Step 2. Open the LCD screen and press the Novo button.

Note: Alternatively, turn off the computer. Press Fn and the hotkey to open the Novo Button menu.

Hotkeys are keys on the top row of the keyboard with printed icons that provide shortcuts to frequently used functions. Hotkeys share keys with function keys (F1–F12) and other keys. Depending on the FnLock setting, you use hotkey functions by pressing the key directly or in combination with the Fn key.

The FnLock switch

The FnLock is an electronic switch that affects how you use hotkey functions. To turn it on and off, press Fn + Esc. The Esc key is in the upper left corner of the keyboard and has an LED that indicates the status of the FnLock switch.

Some models include a dedicated numeric keypad on the far right of the keyboard. Press the NumLock key to enable or disable the numeric keypad.

Eye Care Mode intelligently adjusts the color temperature of the screen and can reduce the chances of developing eye fatigue or eye strain. This feature can be enabled or disabled in Lenovo Vantage, Lenovo PC Manager, or Lenovo Smart Engine.

By filtering the input and output environments, Smart Noise Cancelling helps you reduce noise and optimize the call effect in different scenarios. This feature can be enabled or disabled in Lenovo Vantage, Lenovo PC Manager, or Lenovo Smart Engine.

You can switch the battery’s active charging mode in Lenovo Vantage, Lenovo PC Manager, or Lenovo Smart Engine. The recommended temperature range for charging the battery is between 10°C (50°F) and 35°C (95°F).

Normal mode

Normal mode is the most basic charging mode. In normal mode, it typically takes 2 to 4 hours for the battery to charge from 0% to 100%.

Rapid charge mode

If you want the battery to be charged faster than in normal mode, switch the battery charging to rapid charge mode.

Conservation mode

If your computer is constantly plugged into an electrical outlet, consider switching the battery charging to conservation mode. In conservation mode, the battery will not be fully charged. Instead, the battery’s charge will be kept within 75%–80%. This is beneficial to the long-term health of the battery.

If your computer is constantly plugged in and the battery rarely discharges, it may not charge to its full capacity even if the battery meter reports 100%. You can recover the battery’s full charging potential by discharging and re-charging it.

Step 1. Unplug the computer and use it until the battery charge drops below 20%.

Step 2. Plug in the computer and charge the battery to 100%.

By default, pressing the power button puts the computer to sleep mode. However, you can change the power button behavior in Windows Control Panel.

Step 1. Type Control Panel in the Windows search box and then press Enter. Open the control panel and view by large or small icons.

Step 2. Select the power options and then click choose what the power button does.

The default power plan and some of its idle time-out settings are listed below for computer models pre-installed with Windows. The listed settings are active when the computer is connected to an electrical outlet. If your computer includes a built-in battery pack, a different collection of time-out settings is set to take effect when the computer is operating on battery power.

• Default power plan: Balanced

• Turn off the display: after 5 minutes

• Put the computer to sleep:

– after 5 minutes *

– after 15 minutes *

* for selected models

Note: To wake the computer from the sleep state, press the power button or any key on the keyboard.

This operation is applicable to computers with pre-installed Windows.

Step 1. Type power plan in the Windows search box and then press Enter.

Step 2. Customize a power plan of your preference.

You can switch the operation mode in the pre-installed app Lenovo Vantage, Lenovo Smart Engine, or Lenovo PC Manager. As a shortcut, you can also use the key combination Fn + Q. The following table lists the operation modes and the recommended conditions for each mode.

Note: In Auto (Balance) mode, the computer dynamically switches between High Performance mode and Power Saving (Quiet) mode depending on the tasks running on the computer.

The displays of some Lenovo computers support dual refresh rates. For such a computer, you can manually switch its display to work at either the higher or lower refresh rate. For Windows operation systems, the manual settings are usually found in Settings → System → Display. As a shortcut, you can also use the key combination Fn + R to switch the display refresh rate.

Note: Not all displays support dual refresh rates. If you cannot find settings to change the display refresh rate, the refresh rate of the display might be fixed or cannot be manually changed.

UEFI/BIOS is the first program that runs when a computer starts. UEFI/BIOS initializes hardware components and loads the operating system and other programs. Your computer may include a setup program (setup utility) with which you can change certain UEFI/BIOS settings.

Step 1. Turn on or restart the computer.

Step 2. Before the Lenovo logo appears on the screen, press F2 repeatedly.

Note: For computers with hotkey mode enabled, press Fn + F2.

Normally, the computer starts to a boot manager loaded from the secondary storage device of the computer. Occasionally, you may need to start the computer to a program or boot manager loaded from another device or a network location. After the system firmware initializes all devices, you can press an interruption key to display the boot menu and select a desired boot device.

Step 1. Turn on or restart the computer.

Step 2. Press F12.

Step 3. From the boot device menu, select a boot device to start the computer.

You can make a permanent change on boot devices in the UEFI/BIOS setup utility. Select the Boot menu; in the EFI section, select the desired boot device and move it to the top of the device list. Save changes and exit the setup utility for the change to take effect.

Step 1. Open the UEFI/BIOS setup utility.

Step 2. Select Configuration → Hotkey Mode and press Enter.

Step 3. Change the setting to Disabled or Enabled.

Step 4. Select Exit → Exit Saving Changes.

Notes:

• All passwords set in the setup utility consist of alphanumeric characters only.

• If you start the setup utility using the user password, you can only change a few settings.

You set the administrator password to prevent unauthorized access to the UEFI/BIOS setup utility.

Step 1. Open the UEFI/BIOS setup utility.

Step 2. Select Security → Set Administrator Password and press Enter.

Step 3. Enter a password string that contains only letters and numbers and then press Enter.

Step 4. Enter the password again and press Enter.

Step 5. Select Exit → Exit Saving Changes.

Next time you start the computer, you must enter the administrator password to open the setup utility. If Power on Password is enabled, you must enter the administrator password or the user password to start the computer.

Only the administrator can change or remove the administrator password.

Step 1. Open the UEFI/BIOS setup utility using the administrator password.

Step 2. Select Security → Set Administrator Password and press Enter.

Step 3. Enter the current password.

Step 4. In the Enter New Password text box, enter the new password.

Step 5. In the Confirm New Password text box, enter the new password again.

Note: If you want to remove the password, press Enter in both text boxes without entering any character.

Step 6. Select Exit → Exit Saving Changes.

If you remove the administrator password, the user password is also removed.

You must set the administrator password before you can set the user password.

Step 1. Open the UEFI/BIOS setup utility using the administrator password.

Step 2. Select Security → Set User Password and press Enter.

Step 3. Enter a password string that contains only letters and numbers and then press Enter. The user password must be different from the administrator password.

Step 4. Enter the password again and press Enter.

Step 5. Select Exit → Exit Saving Changes.

If the administrator password has been set, you can enable power-on password to enforce greater security.

Step 1. Open the UEFI/BIOS setup utility.

Step 2. Select Security → Power on Password and press Enter.

Note: The administrator password must be set in advance.

Step 3. Change the setting to Enabled.

Step 4. Select Exit → Exit Saving Changes.

If power-on password is enabled, a prompt appears on the screen every time you turn on the computer. You must enter the administrator or user password to start the computer.

When Flip to Start is enabled, you can turn on the computer by flipping open the screen.

Step 1. Open the UEFI/BIOS setup utility.

Step 2. Select Configuration.

Step 3. Change the setting for Flip to Start.

Note: You may also set Flip to Start in Lenovo Vantage, Lenovo PC Manager or Lenovo Smart Engine.

You can set a hard disk password in the setup utility to prevent unauthorized access to your data.

Step 1. Open the UEFI/BIOS setup utility.

Step 2. Select Security → Set Hard Disk Password and press Enter.

Note: If you start the setup utility using the user password, you cannot set hard disk password.

Step 3. Follow on-screen instructions to set both master and user passwords.

Note: The master and user hard disk passwords must be set at the same time.

Step 4. Select Exit → Exit Saving Changes.

If the hard disk password is set, you must provide the correct password to start the operating system.

Step 1. Open the UEFI/BIOS setup utility.

Step 2. Select Security.

Step 3. Change or remove the hard disk password.

To change or remove master password, select Change Master Password and press Enter.

Note: If you remove the master hard disk password, the user hard disk password is also removed.

To change user password, select Change User Password and press Enter.

Note: The user hard disk password cannot be removed separately.

Step 4. Select Exit → Exit Saving Changes.

Press and hold the power button until the computer turns off. Then restart the computer.

1. Carefully unplug the ac power adapter and turn off the computer immediately. The more quickly you stop the current from passing through the computer the more likely you will reduce damage from short circuits.

2. Wait until you are certain that all the liquid is dry before turning on your computer.

CAUTION: Do not try to drain out the liquid by turning over the computer. If your computer has keyboard drainage holes on the bottom, the liquid will be drained out through the holes.

You can get the latest drivers and firmware from Lenovo Vantage, Lenovo PC Manager or Lenovo Smart Engine.

Your computer may include an ambient light sensor and the adaptive brightness feature is enabled. The light sensor can detect the intensity of the surrounding light. Using data provided by the sensor, the operating system can dynamically adjust the screen brightness.

The adaptive brightness feature of the operating system can be disabled. For Windows operating systems, adaptive brightness settings are usually found in Settings → System → Display.

Your computer may have Flip to Start enabled. Many Lenovo notebook computers include a sensor that can detect the angle at which the lid is opened. When you open the lid, the sensor can detect this behavior. If Flip to Start is enabled, the computer will respond by starting up automatically.

If you don’t like this feature, you can disable it. Flip to Start can be enabled and disabled in:

• Lenovo Vantage, Lenovo PC Manager or Lenovo Smart Engine

• Firmware Setup Utility

Customer replaceable units (CRUs) are parts that can be upgraded or replaced by the customer. A Lenovo computer may contain the following types of CRUs:

Self-service CRU: Parts that can be installed or replaced easily by customer themselves or by trained service technicians at an additional cost.

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

The table below lists the CRUs and CRU types that are defined for your product model.

Notes:

• CRU replacement instruction is provided in one or more of the following publications: the product User Guide or the printed publications that came with the product.

• Replacement of any parts not listed above, including the built-in rechargeable battery, should be done by a qualified repair technician.

Hotkey functions are denoted by the icons printed on the keys. The following table describes the functions for all Lenovo hotkeys. The keyboard of your computer should only support a subset of the listed hotkeys.

Note: Hotkey functions may change if the associated app or the Windows operating system is updated.