DORO LEVA E22 (01) PDF Document

Opening or repairing your DORO LEVA E22 could cause electric shock, device damage, fire, personal injury risks, and other hazards. Please observe the following precautions:

• Make sure that the work surface is clean and free of debris to prevent contamination of internal components.

• Wear an ESD wrist strap to prevent electrostatic discharge damage to sensitive electronic components.

• Always perform repairs in a clean, dry space with good ventilation and no combustible materials.

• Make sure no cables or components are damaged during removal. Damaged cables and components must be replaced.

• Ensure that there are no additional screws or small parts left in the device after assembly.

• Always ensure that screws are securely fastened.

• Disconnect the device from all power sources before any disassembly.

Batteries should be handled with care, as they could be dangerous if not in normal condition. Follow these precautions:

• Discharge the battery before you attempt repair.

• Never bend, dent, puncture, or use tools to pry the battery.

• To prevent damage, store replaced batteries in the replacement packaging directly after being replaced.

• If the battery shows signs of swelling or damage, or if the device feels hot or emits a strong odour, do not attempt disassembly. Please reach out to Doro support.

• If a battery starts to vent, cover it in sand or use gloves and pliers to dispose the battery in a fire safe container as soon as possible.

• Be careful with the following unacceptable battery conditions: pouch damage, line protrusion, scratch, contamination mark, dot protrusion, dent, bubbling, imprinted line, swelling or electrolyte leakage.

• Do not shortcut the battery terminals or damage the battery, as it could result in fire or overheating.

• Do not throw the old battery in regular trash. Dispose of the battery according to local regulations.

Please take the following safety measures when handling broken glass:

• Wear protective gloves and safety glasses when you handle broken glass parts.

• Apply protective film when you remove damaged glass parts.

• Place the damaged glass part in the spare part packaging directly after replacement to prevent injury.

Separating the top and bottom halves is difficult, do not do it unless necessary. This task is not required for most repairs, even if pictures display the cabinets as separated. Separation is only needed to replace:

• The Hinge φ5.8

• The Clamshell assembly

• The Main FPC

• The C-cover

The following are basic tools and materials that can be used for repair, reuse, or upgrade of your DORO LEVA E22.

Tools

Materials

Main PCB

A. FPC Link connector

B. Audio Jack 3.5 mm

C. USB-C connector

D. Battery connector

E. SOS FPC connector

F. Speaker Pad

Sub PCB

A. Camera connector

B. LCD connector

C. FPC Link connector

D. Battery connector

E. Motor pad

Before any repair, ensure the device is turned off to prevent damage. After reassembly, turn it on to verify functionality.

Turn on the phone

1. Press and hold the power button until the display lights up.

Turn off the phone

1. Press and hold the power button.

2. Press OK to turn off the phone.

This procedure explains how to replace the Battery LEVA DBAE-1150A of the device.

Prerequisites:

• Disassemble the Battery cover.

Tools and Equipment:

No tools are required for this procedure.

Spare Parts:

• 1 x Battery LEVA DBAE-1150A

Safety and Precautions:

• Do not puncture or bend the Battery LEVA DBAE-1150A.

• Do not throw the old battery in regular trash. Recycle it according to local regulations for electronic waste and batteries.

Step-by-step instructions:

Remove the Battery LEVA DBAE-1150A

1. Insert your finger into the notch below the Battery LEVA DBAE-1150A.

2. Push the Battery LEVA DBAE-1150A outward, then lift it out.

Note: You can now access the SIM card slot. To remove the SIM card, slide it sideways out of the slot. To install a new SIM card, slide it into the empty slot.

Install a new battery

1. Align the Battery LEVA DBAE-1150A with its compartment, with the contacts facing inward.

2. Slide the Battery LEVA DBAE-1150A into place.

Reassembly Reference:

• Assemble the Battery cover.

Replace the Main LCD 2.8 if it is cracked, unresponsive, or has display issues such as dead pixels or backlight failure.

Prerequisites:

• Disassemble the Battery cover.

• Disassemble the Battery LEVA DBAE-1150A.

• Disassemble the top half of the device.

Tools and Equipment:

• Tweezers

• Plectrum

Spare Parts:

• 1 x Main LCD 2.8

Safety and Precautions:

• Avoid touching the display surface to prevent smudges or damage.

Step-by-step instructions:

Remove the Main LCD 2.8

1. Open the ZIF connector that holds the LCD flex cable in place. Use Tweezers.

2. Disconnect the flex cable and feed it through the opening to the other side.

3. Separate the Main LCD 2.8 from the SUB PCB using a Plectrum.

Install the new Main LCD 2.8

1. Place the Main LCD 2.8 on the SUB PCB. Make sure to align the screen with the locator lines.

2. Feed the flex cable through the opening to the other side of the SUB PCB and connect it to the ZIF connector. Align the white line on the cable with the edge of the connector to ensure correct insertion depth. Use Tweezers.

3. Close the ZIF-connector.

Reassembly Reference:

• Assemble the top half of the device.

• Assemble the Battery LEVA DBAE-1150A.

• Assemble the Battery cover.

Removing the battery cover is the first step in disassembling the phone, allowing access to the battery, SIM card, and internal screws.

Tools and equipment:

• Plectrum

Pre-removal checklist:

• Turn off the phone.

• Disconnect from charger or any peripherals.

Step-by-step instructions:

1. Turn the phone so that the back side faces up.

2. Locate the notch on the left side of the phone.

3. Insert a Plectrum into the notch and gently slide it along the edges to lift the Battery cover.

After-removal checks:

• Check that no clips are broken.

Troubleshooting tips:

• If the battery cover is hard to remove, ensure you are using the notch on the left side of the phone and slide the Plectrum gently along the edge.

Removing the battery is necessary to safely continue with internal repairs. It disconnects the power source and prevents short circuits.

Tools and equipment:

No tools are required for this procedure.

Safety and precautions:

• Do not puncture or bend the Battery LEVA DBAE-1150A.

• Avoid contact with the battery terminals.

Pre-removal checklist:

• Turn off the phone.

• Disassemble the Battery cover.

Step-by-step instructions:

1. Insert your finger into the notch below the Battery LEVA DBAE-1150A.

2. Push the Battery LEVA DBAE-1150A outward, then lift it out.

Note: You can now access the SIM card. To remove the SIM card, slide it sideways into the battery compartment.

After-removal checks:

• Make sure the battery compartment is clean and undamaged.

• Check the Battery LEVA DBAE-1150A for any signs of swelling or damage.

Removing the lower housing assembly is required to access and replace internal components.

Tools and equipment:

• Plectrum

• Screwdriver

Safety and precautions:

• Do not use metal tools to pry open the housing, as they may damage the casing or internal components.

• Avoid applying excessive force that could crack the plastic.

Pre-removal checklist:

• Turn off the phone.

• Disassemble the Battery cover.

• Disassemble the Battery LEVA DBAE-1150A.

Step-by-step instructions:

1. Remove the seven (7) Screw T1.4*3.5.

To disassemble the Lower housing assembly on your DORO LEVA E22, follow these steps:

1. Insert a Plectrum at the bottom of the device.

2. Gently pry open the Lower housing assembly. Start at the bottom, continue along the sides, and work your way around.

3. Once all clips are disengaged, remove the Lower housing assembly.

After-removal checks:

Inspect the Lower housing assembly for cracks or damage.

Troubleshooting tips:

If the screws are hard to remove, use the correct screwdriver size and apply downward pressure while turning.

Removing the PCBA assembly HW3011 is necessary to complete the disassembly of the device or access internal components for repair or replacement.

Tools and Equipment:

Spare Parts:

Safety and Precautions:

Avoid touching components directly.

Pre-removal checklist:

Disassemble the Battery cover.

Disassemble the Battery LEVA DBAE-1150A.

Disassemble the Lower housing assembly.

Step-by-step instructions:

1. Disconnect the FPC_LINK_SF28A_GF28A1_6L_HOLE_V01A using Tweezers.

2. Grip the edge of the PCBA assembly HW3011 and lift it gently.

This procedure describes how to remove components mounted on the PCBA assembly HW3011, including the SOS FPC, Dome foil, and rubber parts.

Tools and Equipment:

Spare Parts:

Safety and Precautions:

Avoid pulling on cables or components with force.

Do not touch connector pins or contact surfaces.

Pre-removal checklist:

Disassemble the Battery cover.

Disassemble the Battery LEVA DBAE-1150A.

Disassemble the Lower housing assembly.

Disassemble the PCBA assembly HW3011.

Remove the SOS FPC and SOS Key Frame:

1. Open the ZIF connector that holds the flex SOS FPC cable in place. Use Tweezers.

2. Disconnect the flex cable.

3. Remove the SOS FPC and the SOS Key Frame.

Remove the Dome foil:

1. Grip one of the upper corners of the Dome foil using Tweezers.

2. Pull the Dome foil carefully downwards until it is fully removed.

Remove the rubber parts:

1. Grip the Sealing rubber USB jack and remove it. Use Tweezers.

2. Grip the Sealing rubber cradle connectors and remove them.

After-removal checks:

Check that no adhesive residue remains on the PCBA assembly HW3011.

Check that the ZIF connectors are undamaged.

Troubleshooting tips:

The flex cable does not come out easily: Make sure the ZIF connector is fully open.

The connector is hard to open: Use a finer-tipped Tweezers and apply gentle upward pressure.

This procedure describes how to disassemble the top half of the device to remove the SUB PCB and the Camera.

Tools and Equipment:

Spare Parts:

Safety and Precautions:

CAUTION: Separating the top and bottom halves is difficult, do not do it unless necessary. This task is not required for most repairs, even if pictures display the cabinets as separated. Separation is only needed to replace:

The Hinge φ5.8

The Clamshell assembly

The Main FPC

The C-cover

Avoid excessive force when separating the housing to prevent deformation.

Pre-removal checklist:

Disassemble the Battery cover.

Disassemble the Battery LEVA DBAE-1150A.

Disassemble the Lower housing assembly.

Disassemble the PCBA assembly HW3011.

Separating the Clamshell assembly from the C-cover:

1. Use Tweezers to push the flap hinge into the Clamshell assembly.

2. Separate the Clamshell assembly and the C-cover.

Remove the Clamshell up assembly:

Note: You do not need to remove the Main LCD glass window. If the glass is damaged, replace the Clamshell up assembly instead.

1. Remove the four (4) Screw rubber covers using Tweezers.

2. Remove the four (4) Screw T1.4*3.5 with a Screwdriver.

3. Carefully separate the Clamshell up assembly from the Clamshell assembly along the edge with a Plectrum.

Remove the Camera:

1. Open the ZIF connector that holds the camera flex cable in place. Use Tweezers.

2. Disconnect the flex cable.

3. Lift the Camera using Tweezers.

Remove the SUB PCB:

1. Separate the SUB PCB from the Clamshell assembly.

2. Disconnect the FPC_LINK_SF28A_GF28A1_6L_HOLE_V01A using Tweezers.

The connector is hard to open: Use a finer-tipped Tweezers and apply gentle upward pressure.

The flex cable does not come out easily: Make sure the ZIF connector is fully open.

Note: If the outer LCD glass is cracked or broken, the Clamshell assembly must be replaced.

Removing the Main LCD 2.8 is necessary when replacing a broken or malfunctioning screen, or when disassembling the phone completely.

Tools and Equipment:

Spare Parts:

Safety and Precautions:

Avoid touching the display surface to prevent smudges or damage.

Pre-removal checklist:

Disassemble the Battery cover.

Disassemble the Battery LEVA DBAE-1150A.

Disassemble the Lower housing assembly.

Disassemble the PCBA assembly HW3011.

Disassemble the top half of the device.

Step-by-step instructions:

1. Open the ZIF connector that holds the LCD flex cable in place. Use Tweezers.

2. Disconnect the flex cable and feed it through the opening to the other side.

3. Separate the Main LCD 2.8 from the SUB PCB using a Plectrum.

The flex cable does not come out easily: Make sure the ZIF connector is fully open.

The cable is hard to grip: Use angled Tweezers for better control.

Removing the Receiver and Motor is necessary when replacing defective components or performing a full disassembly of the phone.

Tools and Equipment:

Spare Parts:

Safety and Precautions:

Avoid applying excessive force when prying.

Pre-removal checklist:

Disassemble the Battery cover.

Disassemble the Battery LEVA DBAE-1150A.

Disassemble the top half of the device.

Step-by-step instructions:

1. Remove the Receiver from the Clamshell up assembly, use Tweezers.

2. Remove the Motor from the Clamshell up assembly.

3. Remove the Main FPC from the Clamshell up assembly.

Troubleshooting:

If a component feels stuck, rock it gently from side to side before lifting.

Removing the Keypad and Speaker is necessary to complete the disassembly of the device or replace damaged components.

Tools and Equipment:

Spare Parts:

Pre-removal checklist:

Disassemble the Battery cover.

Disassemble the Battery LEVA DBAE-1150A.

Disassemble the Lower housing assembly.

Disassemble the PCBA assembly HW3011.

Step-by-step instructions:

1. Remove the Keypad from the C-cover.

2. Remove the Speaker from the Lower housing assembly using Tweezers.

This procedure describes how to correctly reinstall the Keypad and Speaker after internal repairs or inspections.

Tools and Equipment:

Spare Parts:

Step-by-step instructions:

1. Place the Speaker into its slot in the Lower housing assembly using Tweezers.

2. Place the Keypad into the C-cover.

Post-assembly checks:

Check that the Keypad is flat and aligned.

Troubleshooting and tips:

If the Speaker does not stay in place, ensure the housing is clean and press gently until it stays in place.

This procedure describes how to correctly reinstall the Receiver and Motor after internal repairs or inspections.

Tools and Equipment:

Spare Parts:

Step-by-step instructions:

1. Place the Receiver into its slot in the Clamshell up assembly, use Tweezers.

2. Place the Motor into its slot in the Clamshell up assembly.

3. Install the Main FPC.

Troubleshooting and tips:

If a component does not stay in place, ensure the housing is clean and press gently until it stays in place.

This procedure describes how to correctly reinstall the Main LCD 2.8 after internal repairs or inspections.

Tools and Equipment:

Spare Parts:

Safety and Precautions:

Avoid touching the display surface to prevent smudges or damage.

Step-by-step instructions:

1. Place the Main LCD 2.8 on the SUB PCB. Make sure to align the screen with the locator lines.

2. Feed the flex cable through the opening to the other side of the SUB PCB and connect it to the ZIF connector. Align the white line on the cable with the edge of the connector to ensure correct insertion depth. Use Tweezers.

3. Close the ZIF-connector.

Post-assembly checks:

Check that the flex cable is fully inserted and the ZIF connector is closed.

Check that the Main LCD 2.8 is aligned and seated properly.

Troubleshooting and tips:

If you see smudges or dust, gently clean the Main LCD 2.8 surface before continuing.

If the cable does not go in fully, check that the ZIF connector is fully open before inserting it.

This procedure describes how to correctly reassemble the top half of the device after internal repairs or inspections.

Tools and Equipment:

Spare Parts:

Step-by-step instructions:

Install the SUB PCB:

1. Connect the FPC_LINK_SF28A_GF28A1_6L_HOLE_V01A.

2. Place the SUB PCB into the Clamshell assembly, use Tweezers.

Install the Camera:

1. Insert the camera flex cable into the ZIF connector. Align the white line on the cable with the edge of the connector to ensure correct insertion depth. Use Tweezers.

2. Close the ZIF-connector.

3. Place the Camera in its slot in the Clamshell assembly, use Tweezers.

Install the Clamshell up assembly:

1. Put the Clamshell up assembly in place.

2. Insert and tighten the four (4) Screw T1.4*3.5 with a Screwdriver.

3. Press the four (4) Screw rubber cover into place.

Reconnect the Clamshell assembly to the C-cover:

1. Install the Clamshell assembly into the C-cover. Use Tweezers to push the flap hinge into the designated slot.

Post-assembly checks:

Confirm that the flex cable is inserted to the correct depth and the ZIF connector is closed.

Confirm that the device closes properly without gaps or resistance.

Check that all four screws are tightened and the screw covers are fully pressed into place.

Troubleshooting and tips:

If the Camera does not sit flat, ensure no debris is under the module and that it is correctly positioned.

If the screw covers pop out, press straight down with Tweezers until flush.

This procedure describes how to correctly reinstall the components of the PCBA assembly HW3011 after internal repairs or inspections.

Tools and Equipment:

Spare Parts:

Safety and Precautions:

Avoid pulling on cables or components with force.

Do not touch connector pins or contact surfaces.

Step-by-step instructions:

Install the Dome foil:

1. Align the Dome foil with its position on the PCBA assembly HW3011.

2. Press the Dome foil down, starting from one side and working across to ensure full adhesion.

Install the SOS Key Frame and SOS FPC:

1. Place the SOS Key Frame and SOS FPC on the PCBA assembly HW3011 using Tweezers.

2. Insert the flex cable into the ZIF connector. Align the white line on the cable with the edge of the connector to ensure correct insertion depth.

3. Close the ZIF connector.

Install the rubber parts:

1. Place the Sealing rubber USB jack and the Sealing rubber cradle connectors onto their positions on the PCBA assembly HW3011 using Tweezers.

Post-assembly checks:

Confirm that the Dome foil is fully adhered with no lifted edges.

Confirm that the flex cable is fully inserted and the ZIF connector is closed.

Troubleshooting and tips:

If the flex cable does not stay in place, ensure the ZIF connector is fully open before inserting it.

If the rubber parts do not sit flat, check for dirt or misalignment and reposition carefully.

This procedure describes how to correctly reinstall the PCBA assembly HW3011 after internal repairs or inspections.

Tools and Equipment:

Spare Parts:

Safety and Precautions:

Avoid touching component surfaces or contact points.

Step-by-step instructions:

1. Place the PCBA assembly HW3011 in the C-cover.

2. Connect the FPC_LINK_SF28A_GF28A1_6L_HOLE_V01A to the PCBA assembly HW3011 using Tweezers.

Post-assembly checks:

Check that the PCBA assembly HW3011 is flat and aligned with the housing.

Troubleshooting and tips:

If the PCBA assembly HW3011 does not sit flat, check for debris or misaligned parts beneath it.

If the PCBA assembly HW3011 is difficult to position, tilt it slightly and lower it carefully into place.

This procedure describes how to correctly reinstall the Lower housing assembly after internal repairs or inspections.

Tools and Equipment:

Spare Parts:

Safety and Precautions:

Avoid pinching any parts when pressing Lower housing assembly into place.

Use only gentle, even pressure to avoid damaging clips or plastic edges.

Step-by-step instructions:

1. Align the Lower housing assembly with the C-cover.

2. Press it gently into place, starting from one side and working around the edges until all clips are engaged.

3. Insert and tighten the seven (7) screws to secure the Lower housing assembly.

Post-assembly checks:

Check that all screws are installed.

Check that the housing is fully closed and no parts are pinched.

Troubleshooting and tips:

If the Lower housing assembly does not close properly, check for misaligned components or cables obstructing the fit.

If a clip does not snap into place, apply gentle pressure closer to the clip and check alignment.

This procedure describes how to correctly reinstall the Battery LEVA DBAE-1150A after internal repairs or inspections.

Spare Parts:

Preassemble checklist:

Check that the Battery LEVA DBAE-1150A is clean and undamaged before installation.

Align the Battery LEVA DBAE-1150A correctly to avoid damaging the contacts.

Step-by-step instructions:

Note: If you want to install a SIM card, slide the SIM card into its slot before reattaching the Battery LEVA DBAE-1150A.

1. Align the Battery LEVA DBAE-1150A with its compartment, with the contacts facing inward.

2. Slide the Battery LEVA DBAE-1150A into place.

Troubleshooting:

If the Battery LEVA DBAE-1150A does not fit, check that it is oriented correctly.

This procedure describes how to correctly reinstall the Battery cover after internal repairs or inspections.

Spare Parts:

Safety and Precautions:

Do not use excessive force when pressing the Battery cover into place.

Step-by-step instructions:

1. Align the Battery cover with the back of the phone.

2. Press along the edges until all clips click into place.

The Battery cover does not snap into place: Check for obstructions or misalignment.

One side will not close: Press gently and evenly around the edge until it locks.

CAUTION: This section is for technicians and repair professionals only.

You can retrieve diagnostic information by running a failure analysis on the device. This process identifies faults and error codes that help determine the appropriate repair actions.

To run the failure analysis tool:

1. Press *#15963# .

2. Select Item test to test a specific function or component, then follow the on-screen instructions.

Press Return to exit the tool.