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Disassembly of the mobile device Huawei Honor 20 Pro (Huawei Honor 20 Pro YAL-L41) with each step description and the required set of tools.


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Step 1. Open the tray

Using the Key tool (aka Needle) or Paperclip, open the SIM and Memory cards (Micro SD) tray, and take it out.

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

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Step 2. 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 display module must be heated to soften the adhesive underneath. The approximate heating temperature is 50 ° C.

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.

Do not let the liquid get inside the smartphone. The process can be seen in our video entirely so as well as in detail, at the end of the instructions.

⚠️ Look in advance at the picture of the places where the touchscreen and display cables pass under the display module to avoid accidental damage.

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Step 3. Unscrew the screws

Using a screwdriver (Phillips 1.5 mm PH000), unscrew the 11 screws. 

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Step 4. Open the cover

Remove the cover with antennas that protect the printed circuit board (PCB). Try to lift the covers by the edges and do not push anything between them to not accidentally touch or short-circuit anything on the PCB.

ℹ️️ On the upper cover, you can see the metalized coating on the plastic in the form of tracks and contact pads. These are Wi-Fi, Bluetooth, and GPS antennas.

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Step 5. Disconnect the battery connector

Disconnect the battery connector as soon as possible.

ℹ️️ The Huawei Honor 20 Pro model has a battery HB436486ECW with 3900 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 6. Unscrew the screws

Using a screwdriver (Phillips 1.5 mm PH000), unscrew 7 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 7. Remove the loudspeaker

Remove the loudspeaker assembly with antennas.

ℹ️️ This loudspeaker is installed on many models of this manufacturer, and it is quite simple to change. To replace the loudspeaker, you need to heat its surface to soften the glue base gently, but a new one - be sure to glue it! Otherwise, when playing sounds and music, the speaker will rattle and make extraneous sounds.

⚠️ It is important while reassembling, checking the spring contacts on the board, and contact pads on the cover match and touch. Otherwise, signal loss or signal may be quite weak.

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Step 8. Disconnect the connectors

Disconnect the coaxial cable connector and inter-board cable.

⚠️ 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).

⚠️ 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 9. 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, vibration motor, spring contacts for the speaker, 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 10. Remove the cameras

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

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Step 11. Disconnect the connectors

Pry up the connectors of power volume buttons cable, 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 12. Remove the mainboard

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 13. In the display frame remained

  In the housing remained: the earpiece speaker, battery, and proximity sensor cable.

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


Disassembling\Repair has medium complexity and takes about 11 minutes in time. Our manual is suitable for all models Huawei Honor 20 Pro — Huawei Honor 20 Pro YAL-L41 released for markets in different countries.


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