Disassembly of the mobile device Huawei Honor View 20 (Huawei Honor View 20 PCT-L29) with each step description and the required set of tools.

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Teardown difficulty:
Moderate
Duration:
18 min

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How to disassemble Huawei Honor View 20, Step 1/1 How to disassemble Huawei Honor View 20, Step 1/2

Step 1. Before disassembling!

⚠️ Before disassembling, do not forget to turn your phone off.


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Step 2. Remove the tray

Use the Key tool (aka Needle) or Paperclip. Push the tip all the way into the hole until the tray ejects, and then pull the tray of SIM and Memory card (Micro SD) out.

⚠️ Pay attention! The tool must be inserted into a hole on the edge of the phone's housing. Do not press too hard. It may break the tray eject mechanism.


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Step 3. Open the back cover

We recommend using a special heating device such as a separator machine, heat gun, or heating mat. It will simplify the process. You can use a home hairdryer, but you will have to make a nozzle by hand or have a suitable one in the kit to gently heat and concentrate the heat flow in the right place.

ℹ️️ The surface of the back cover must be heated to soften the adhesive underneath. The approximate heating temperature is 50° C / 125° F.

Use a thin plastic film or pick for separation. To facilitate the process, you can use isopropyl alcohol. It is often most difficult to pass the tool between the parts to be divided. Choose the far edge from the FFC cables or buttons.

Do not use a lever or any force for separation that could damage the elements inside.

⚠️ Pay attention to the fingerprint sensor cable that connects the fingerprint sensor located inside the back cover with PCB.


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Step 4. Disconnect the connector

Disconnect the fingerprint sensor connector and remove the back cover.


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Step 5. Unscrew the screws

Using a screwdriver (Phillips 1.5 mm PH000), unscrew 10 screws.


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Step 6. Unscrew one screw

Using a screwdriver (Phillips 1.5 mm PH000), unscrew one screw.

ℹ️️ Be sure to note the location of the screws before disassembling. When assembling the device, screwing the screw in the wrong place may damage the device or its part. To avoid damage, the removed screws and individual pieces (as gaskets or brackets) must be laid out in the appropriate order, or the screws and their holes in the phone must be marked with colored markers.


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Step 7. Open the cover

Carefully open the cover with a protective layer and move it aside to access the fingerprint sensor cable connector.


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Step 8. Remove the cover

Pry up the fingerprint sensor cable connector and remove the cover with antennas.


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Step 9. Disconnect the battery connector

Disconnect the battery connector as soon as possible.

ℹ️️ The Huawei Honor View 20 PCT-L29 model has a battery HB436486ECW with 4000 mAh capacity (aka rechargeable battery).

⚠️ It is highly recommended to disconnect the connector to avoid possible short circuits during disassembly.

Also, try not to use a metal tool to disconnect the rechargeable battery connector or do it carefully.


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Step 10. Unscrew the screws

Using a screwdriver (Phillips 1.5 mm PH000), unscrew three screws.


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Step 11. Unscrew the screws

Using a screwdriver (Phillips 1.5 mm PH000), unscrew 7 small screws.

ℹ️️ Be sure to note the location of the screws before disassembling. When assembling the device, screwing the screw in the wrong place may damage the device or its part. To avoid damage, the removed screws and individual pieces (as gaskets or brackets) must be laid out in the appropriate order, or the screws and their holes in the phone must be marked with colored markers.


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Step 12. Remove the protective film

Carefully remove the protective film.


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Step 13. Remove the loudspeaker

Remove the assembly with a loudspeaker, vibration motor, antenna contacts.


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Step 14. Disconnect the connectors

Disconnect the coaxial cable connector, cables to the mainboard, on the daughterboard.

⚠️ Do not pull on the cable or pry it with a sharp tool, the connectors are pretty weak and break easily, or the cable falls out of the end (lug).


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Step 15. Remove the daughterboard

Remove the sub-board. It is glued to the frame with metalized tape, so to facilitate the process, the board can be heated a bit.

ℹ️️ The board contains a charging port (Micro USB), microphone, spring contacts for the speaker, vibration motor, and an antenna unit.

⚠️ It is not necessary to insert the tool under the board when removing the sub-board. Internal components could be damaged.


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Step 16. Remove the battery

Carefully remove the battery.

⚠️ The battery is glued from the inside, so be careful.


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Step 17. Disconnect the connectors

Pry up the connectors of the display module cable, inter-board cable, and coaxial cable.

⚠️ Be careful when removing the cables from the connectors, the cables are pretty thin, and it is easy enough to break them or damage the contact tracks inside.


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Step 18. Remove the cameras

Pry up the connectors and remove two rear cameras and one front (selfie) camera.


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Step 19. Remove the motherboard

Carefully remove the printed circuit board. There is no need to use a lever or try to reach the board by force. Make sure that nothing is getting in the way or holding the board.

⚠️ Do not bend the circuit board when removing it or push tools under it. Unbeknownst to yourself, you can damage components or cables from the inside.


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Step 20. In the display frame remained

ℹ️️ In the display frame remained: the earpiece speaker, cables, and vibration motor.

Detailed disassembly instructions of Huawei Honor View 20 in the video, made by our mobile repair & service center:

If you have a question, ask us, and we will try to answer in as much detail as possible. If this article was helpful for you, please rate it.

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Disassembling\Repair has medium complexity and takes about 18 minutes in time. Our manual is suitable for all models Huawei Honor View 20 — Huawei Honor View 20 PCT-L29 released for markets in different countries.



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