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What should I consider before attempting a self-repair on my DORO LEVA E20?
Self-service repair is not recommended unless you have the necessary technical knowledge and experience to safely handle electronic components. Attempting repairs on your DORO LEVA E20 without proper expertise can result in damage to the device, personal injury, or voiding of any applicable warranty.
By choosing to proceed with a self-repair, you acknowledge and accept all risks and responsibilities associated with the process.
What types of repairs are covered in the guide for the DORO LEVA E20?
The repair guide for the DORO LEVA E20 covers:
• Safe disassembly and reassembly procedures
• Replacement of specific hardware components
• Basic troubleshooting and visual inspections
The guide does not cover:
• Advanced electrical diagnostics
• Software-level repairs or firmware issues
• Modifications outside manufacturer specifications
What are the general safety precautions for repairing the DORO LEVA E20?
When repairing your DORO LEVA E20, be aware that opening or repairing the device could cause electric shock, device damage, fire, personal injury risks, and other hazards. Follow these 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.
How should I handle the battery for my DORO LEVA E20 during repair?
Batteries should be handled with care. Please observe the following safety precautions for the DORO LEVA E20 battery:
• 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.
• 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 unacceptable battery conditions such as: 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.
What precautions should I take when handling broken glass from my DORO LEVA E20?
When handling broken glass parts from your DORO LEVA E20, follow these safety steps:
• Wear protective gloves and safety glasses.
• 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.
When is it necessary to separate the top and bottom halves of my DORO LEVA E20?
Separating the top and bottom halves of the DORO LEVA E20 is difficult and should not be done unless necessary. This task is not required for most repairs. Separation is only needed to replace the following components:
• The Hinge φ5.8
• The Clamshell assembly
• The Main FPC
• The C-cover
What tools and materials are needed to repair the DORO LEVA E20?
The following are basic tools and materials that can be used for repair, reuse, or upgrade of your DORO LEVA E20.
Tools
| Tool type | Reference |
| Screwdriver (for slotted heads, cross recess or hexalobular recess heads) | ISO 2380, ISO 8764, ISO 10664 |
| Prying lever | |
| Tweezers | |
| Magnifying glass | |
| Plectrum | |
| Suction cup with keyring | |
| Hot air rework station | |
| Fixture |
Materials
| Material type | Reference |
| Isopropanol |
What are the components listed in the exploded view of the DORO LEVA E20?
| No | Part name | Qty |
|---|---|---|
| 1 | B_CAM WIN GF28A1 PMMA BK DORO RoHS | 1 |
| 2 | Clamshell up assembly | 1 |
| 3 | Camera | 1 |
| 4 | Sealing rubber hinge | 1 |
| 5 | Motor | 1 |
| 6 | Clamshell assembly | 1 |
| 7 | Screw rubber cover | 4 |
| 8 | Main FPC | 1 |
| 9 | C-cover | 1 |
| 10 | Sealing rubber USB jack | 1 |
| 11 | Keypad | 1 |
| 12 | Dome foil | 1 |
| 13 | Hinge φ5.8 | 1 |
| 14 | SOS Key Frame | 1 |
| 15 | Speaker | 1 |
| 16 | Main FPC wrap foam | 1 |
| 17 | SOS FPC | 1 |
| 18 | Lower housing assembly | 1 |
| 19 | SUB PCB | 1 |
| 20 | Main LCD 2.8 | 1 |
| 21 | Receiver | 1 |
| 22 | Magnet | 1 |
| 23 | Main LCD glass window | 1 |
| 24 | PCBA assembly HW3011 | 1 |
| 25 | Sealing rubber cradle connectors | 1 |
| 26 | Battery LEVA DBAE-1150A | 1 |
| 27 | IMEI label | 1 |
| 28 | Screw T1.4*3.5 | 11 |
| 29 | Waterproof label D=2,5mm SKD RoHS | 1 |
| 30 | Battery cover | 1 |
Where are the key components located on the DORO LEVA E20 circuit boards?
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
How do I turn my DORO LEVA E20 on and off?
Before any repair, your DORO LEVA E20 must be turned off to prevent damage.
Turn on the phone
1. Press and hold the end call button until the display lights up.
Turn off the phone
1. Press and hold the end call button.
2. Press OK to turn off the phone.
How do I replace the battery and access the SIM card on my DORO LEVA E20?
Follow these steps to remove and replace the battery on your DORO LEVA E20. This procedure also provides access to the SIM card slot.
Remove the Battery Cover
1. Turn the phone off and disconnect it from any chargers.
2. Turn the phone so the back side faces up.
3. Locate the notch on the left side of the phone.
4. Insert a Plectrum into the notch and gently slide it along the edges to lift the Battery cover.
Remove the Battery
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.
Access the SIM Card
You can now access the SIM card slot. To remove an installed 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 new Battery LEVA DBAE-1150A with its compartment, ensuring the contacts face inward.
2. Slide the Battery LEVA DBAE-1150A into place.
Re-install the Battery Cover
1. Align the Battery cover with the back of the phone.
2. Press along the edges until all clips click into place.
How do I replace the Main LCD 2.8 on my DORO LEVA E20?
This procedure is for replacing a cracked, unresponsive, or malfunctioning Main LCD 2.8. Prerequisites include disassembling the Battery cover, Battery, and the top half of the device.
Remove the old Main LCD 2.8
1. Use Tweezers to open the ZIF connector that holds the LCD flex cable in place on the SUB PCB.
2. Disconnect the flex cable and feed it through the opening to the other side.
3. Use a Plectrum to separate the Main LCD 2.8 from the SUB PCB.
Install the new Main LCD 2.8
1. Place the new Main LCD 2.8 on the SUB PCB. 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.
3. Close the ZIF connector.
After replacement, reassemble the top half of the device, the battery, and the battery cover.
How can a professional repairer replace the Audio jack 3.5 mm on the DORO LEVA E20?
This procedure requires a hot air rework station and should only be performed by professional repairers. It is necessary to replace a damaged jack and restore audio functionality.
Safety Precautions for Hot Air Rework Station:
• PCBs act as a heatsink. Ensure your hot air rework station has sufficient power to quickly melt the solder.
• Use a suitable nozzle and heat-resistant protection to shield nearby components.
Step-by-step instructions:
1. Place the PCBA assembly HW3011 in a fixture.
2. Set the hot air rework station to an appropriate temperature.
3. Apply flux around the solder joints on the Audio jack 3.5 mm.
4. Heat the joints until the solder softens.
5. Use Tweezers to carefully lift the old Audio jack 3.5 mm.
6. Apply a small amount of flux to the pads on the PCB.
7. Add tin to the pads if needed.
8. Heat the pads until the solder softens.
9. Place the new Audio jack 3.5 mm on the pads.
10. Heat until the solder flows and the joints are fully formed.
After replacement, reassemble the device.
How can a professional repairer replace the USB-C connector on the DORO LEVA E20?
This procedure requires a hot air rework station and should only be performed by professional repairers to replace a damaged connector and restore charging functionality.
Safety Precautions for Hot Air Rework Station:
• PCBs act as a heatsink. Ensure your hot air rework station has sufficient power to quickly melt the solder.
• Use a suitable nozzle and heat-resistant protection to shield nearby components.
Step-by-step instructions:
1. Place the PCBA assembly HW3011 in a fixture.
2. Set the hot air rework station to an appropriate temperature.
3. Apply flux around the solder joints on the USB-C connector.
4. Heat the joints until the solder softens.
5. Use Tweezers to carefully lift the old USB-C connector.
6. Apply a small amount of flux to the pads on the PCB.
7. Add tin to the pads if needed.
8. Heat the pads until the solder softens.
9. Place the new USB-C connector on the pads.
10. Heat until the solder flows and the joints are fully formed.
After replacement, reassemble the device.
How can a professional repairer replace the Microphone on the DORO LEVA E20?
This procedure requires a hot air rework station and should only be performed by professional repairers to restore audio input functionality.
Step-by-step instructions:
1. Place the PCBA assembly HW3011 in a fixture.
2. Set the hot air rework station to an appropriate temperature.
3. Apply flux around the solder joints on the Microphone.
4. Heat the joints until the solder softens.
5. Use Tweezers to carefully lift the old Microphone.
6. Apply a small amount of flux to the pads on the PCB.
7. Add tin to the pads if needed.
8. Heat the pads until the solder softens.
9. Place the new Microphone on the pads.
10. Heat until the solder flows and the joints are fully formed.
After replacement, reassemble the device.
How can a professional repairer replace the SubMicrophone on the DORO LEVA E20?
This procedure requires a hot air rework station and should only be performed by professional repairers to restore audio input functionality.
Step-by-step instructions:
1. Place the PCBA assembly HW3011 in a fixture.
2. Set the hot air rework station to an appropriate temperature.
3. Apply flux around the solder joints on the SubMicrophone.
4. Heat the joints until the solder softens.
5. Use Tweezers to carefully lift the old SubMicrophone.
6. Apply a small amount of flux to the pads on the PCB.
7. Add tin to the pads if needed.
8. Heat the pads until the solder softens.
9. Place the new SubMicrophone on the pads.
10. Heat until the solder flows and the joints are fully formed.
After replacement, reassemble the device.
How can a professional repairer replace the Side key switch on the DORO LEVA E20?
This procedure requires a hot air rework station and should only be performed by professional repairers to replace a damaged key and restore proper key function.
Step-by-step instructions:
1. Place the PCBA assembly HW3011 in a fixture.
2. Set the hot air rework station to an appropriate temperature.
3. Apply flux around the solder joints on the Side key switch.
4. Heat the joints until the solder softens.
5. Use Tweezers to carefully lift the old Side key switch.
6. Apply a small amount of flux to the pads on the PCB.
7. Add tin to the pads if needed.
8. Heat the pads until the solder softens.
9. Place the new Side key switch on the pads.
10. Heat until the solder flows and the joints are fully formed.
After replacement, reassemble the device.
How can a professional repairer replace the Charging bottom pins on the DORO LEVA E20?
This procedure requires a hot air rework station and should only be performed by professional repairers to replace damaged pins and restore charging functionality.
Step-by-step instructions:
1. Place the PCBA assembly HW3011 in a fixture.
2. Set the hot air rework station to an appropriate temperature.
3. Apply flux around the solder joints on the Charging bottom pins.
4. Heat the joints until the solder softens.
5. Use Tweezers to carefully lift the old Charging bottom pins.
6. Apply a small amount of flux to the pads on the PCB.
7. Add tin to the pads if needed.
8. Heat the pads until the solder softens.
9. Place the new Charging bottom pins on the pads.
10. Heat until the solder flows and the joints are fully formed.
After replacement, reassemble the device.
How do I disassemble and reassemble the Lower housing assembly of my DORO LEVA E20?
This procedure is required to access and replace internal components after the battery has been removed.
Disassembly
1. Ensure the phone is off and the battery is removed.
2. Remove the seven (7) Screw T1.4*3.5 from the back of the phone.
3. Insert a Plectrum at the bottom of the device and gently pry open the Lower housing assembly. Start at the bottom, continue along the sides, and work your way around.
4. Remove the Lower housing assembly.
Assembly
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.
How do I disassemble and reassemble the PCBA assembly and its components on my DORO LEVA E20?
Follow these instructions to disassemble and reassemble the main circuit board (PCBA) and its attached components.
Disassemble PCBA Components
1. SOS FPC and Key Frame: Open the ZIF connector holding the SOS FPC flex cable with Tweezers. Disconnect the cable and remove the SOS FPC and SOS Key Frame.
2. Dome foil: Grip an upper corner of the Dome foil with Tweezers and pull it carefully downwards until it is fully removed.
3. Rubber parts: Use Tweezers to grip and remove the Sealing rubber USB jack and the Sealing rubber cradle connectors.
Disassemble the PCBA Assembly
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.
Assemble PCBA Components
1. Rubber parts: Use Tweezers to place the Sealing rubber USB jack and Sealing rubber cradle connectors onto their positions on the PCBA.
2. Dome foil: Align the Dome foil with its position on the PCBA and press it down, starting from one side and working across to ensure full adhesion.
3. SOS Key Frame and FPC: Place the SOS Key Frame and SOS FPC on the PCBA using Tweezers. Insert the flex cable into the ZIF connector, aligning the white line on the cable with the connector edge, then close the ZIF connector.
Assemble the PCBA Assembly
1. Place the PCBA assembly HW3011 into the C-cover.
2. Connect the FPC_LINK_SF28A_GF28A1_6L_HOLE_V01A to the PCBA assembly using Tweezers.
How do I disassemble and reassemble the top half of my DORO LEVA E20?
This procedure describes how to disassemble the top half of the device to access the SUB PCB and Camera. Remember, separating the top and bottom halves is difficult and should only be done if necessary.
Disassembly
1. Separate Halves: Use Tweezers to push the flap hinge into the Clamshell assembly to separate it from the C-cover.
2. Remove Clamshell up assembly: Remove the four (4) Screw rubber covers with Tweezers. Then remove the four (4) Screw T1.4*3.5 with a Screwdriver. Carefully separate the Clamshell up assembly from the Clamshell assembly using a Plectrum.
3. Remove the Camera: Open the ZIF connector for the camera flex cable with Tweezers. Disconnect the flex cable and lift the Camera out.
4. Remove the SUB PCB: Separate the SUB PCB from the Clamshell assembly. Disconnect the FPC_LINK_SF28A_GF28A1_6L_HOLE_V01A using Tweezers.
Assembly
1. Install the SUB PCB: Connect the FPC_LINK_SF28A_GF28A1_6L_HOLE_V01A. Place the SUB PCB into the Clamshell assembly.
2. Install the Camera: Insert the camera flex cable into its ZIF connector, aligning the white line correctly. Close the ZIF connector. Place the Camera in its slot.
3. Install the Clamshell up assembly: Put the Clamshell up assembly in place. Insert and tighten the four (4) Screw T1.4*3.5. Press the four (4) Screw rubber covers into place.
4. Reconnect Halves: Install the Clamshell assembly into the C-cover. Use Tweezers to push the flap hinge into its designated slot.
How do I replace the Receiver and Motor in my DORO LEVA E20?
This procedure is for replacing a defective Receiver or Motor.
Disassembly
1. After disassembling the top half of the device, locate the Receiver and Motor in the Clamshell up assembly.
2. Use Tweezers to remove the Receiver from the Clamshell up assembly.
3. Use Tweezers to remove the Motor from the Clamshell up assembly.
4. Remove the Main FPC from the Clamshell up assembly.
Assembly
1. Place the new Receiver into its slot in the Clamshell up assembly using Tweezers.
2. Place the new Motor into its slot in the Clamshell up assembly.
3. Install the Main FPC.
How do I replace the Keypad and Speaker in my DORO LEVA E20?
This procedure describes how to remove and reinstall the Keypad and Speaker.
Disassembly
1. After removing the Lower housing assembly, remove the Keypad from the C-cover.
2. Remove the Speaker from the Lower housing assembly using Tweezers.
Assembly
1. Place the Speaker into its slot in the Lower housing assembly using Tweezers.
2. Place the Keypad into the C-cover. Check that the Keypad is flat and aligned.
How can a technician run diagnostics on the DORO LEVA E20?
This section is for technicians and repair professionals only. You can retrieve diagnostic information by running a failure analysis on the DORO LEVA E20. This process identifies faults and error codes to 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.
How to use the PDF below:
* Touchscreen: Swipe up/down with-in the PDF to scroll and pinch or spread with two fingers to zoom.
* Mouse: While your mouse is hovering over the PDF, use the mouse wheel to scroll and click on the – / + buttons at the bottom of the PDF to zoom.
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