Disassembly/Repair of the mobile device Huawei Mate 20 Pro (Huawei Mate 20 Pro LYA-L09, LYA-L29 (Global); LYA-AL00, LYA-AL10, LYA-TL00 (China, Hong Kong); LYA-L0C (Canada)) with each step description and the required set of tools.

Use the ejection 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.

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.

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

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

Remove the cover with NFC tag, antennas, protective film. Try to lift the cover by the edges and not push anything between them to not accidentally touch or short-circuit anything on the PCB.

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

Pry up the flashlight connector and remove the cover.

Disconnect the battery connector as soon as possible.

ℹ️️ The Huawei Mate 20 Pro model has a battery HB486486ECW with 4200 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.

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

Remove the cover securing the small board.

Carefully, preferably from the edge, disconnect the connectors and remove the inter-board cable connecting the mainboard to the daughterboard (also known as the sub-board).

⚠️ 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.

ℹ️️ An arrow on the FFC cable (flexible flat cable) indicates its correct position.

Disconnect the coaxial cable connector, cable to the loudspeaker 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).

Remove the small 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 spring contacts for an antenna unit.

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

Remove the loudspeaker assembly with antennas.

Pry up the inter-board cable connector on the sub-board.

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 microphone, spring contacts for the 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.

Disconnect the connector, pull out the port and remove the inter-board cable with a charging port.

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

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.

Remove the bracket holding the cameras connector.

Pry up the connectors and remove the assembly of three rear cameras.

Disconnect the connector and remove the inter-board cable.

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

Remove the loudspeaker assembly.

Remove the two front (selfie) cameras assembly.

Remove the small board.

ℹ️️ In the display frame remained: the battery, coaxial cable, and vibration motor.