In this guide, we will show you how to remove and replace the motherboard on a Huawei Mate 9 smartphone.
In order to remove the motherboard, you need to remove the SIM card tray, back cover, front camera, and rear camera. Disconnect the fingerprint and power button cable, battery connector, and all other cables from the motherboard.
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Repair Tools Needed:
T2 Torx Screwdriver
Phillips #000 Screwdriver
Suction cup
Pick
Tweezers
Spudger
SIM Card Eject Tool
1. Removing the SIM card tray and two T2 screws
First, switch off your Huawei Mate 9 and remove the SIM card tray using a SIM card eject tool.
Remove the two T2 screws located at the bottom next to the device’s USB Type-C port.
2. Separating the back cover
Use a suction cup to separate the display assembly from the back cover.
Lift up the display a little bit with a suction cup and insert a pick.
Slide the pick along the display edge on both sides.
Please don’t remove the back cover completely. The fingerprint and power button cable is still connected to the motherboard.
3. Disconnect the battery connector
In order to protect the internal components, we need to disconnect the battery connector.
Remove the screw securing the metal plate.
Remove the metal plate using tweezers.
Disconnect the battery connector from the motherboard.
4. Removing the back cover
Disconnect the battery connector with a spudger.
Now, you can remove the back cover completely.
5. Removing the front-facing camera
Peel off the conducting fabric from the metal shield.
Disconnect the front camera connector and remove it.
6. Removing the rear camera
Remove two screws securing the metal plate with Phillips #000 screwdriver.
Remove the metal plate with tweezers.
Now, you can take the rear camera out of its slot.
7. Removing the motherboard
Remove six Phillips #000 screws securing the motherboard.
Disconnect three connectors and one antenna cable from the motherboard.
Disconnect the antenna cable from the motherboard.
Now, you can remove the motherboard completely.
