HUAWEI P9 mainboard repair guide

Remove the motherboard after water damage.

In this repair guide, we show you how to remove your P9’s PCB on your own. You need to remove the PCB if you want to clean it after water damage.

Find out what to do about water damage here

Required tools

For storing screws

For storing screws

We recommend storing your screws so you don’t mix up the various screws and small parts.
from €10.99 on Amazon
Tweezers

Tweezers

We recommend using tweezers to remove screws and various small parts from your device.
on Amazon
Pick Set

Pick Set

You need a flat but stable tool such as a pick to pry out parts that are glued in place.
from €14.99 on Amazon
Pentalobe PL1 screwdriver

Pentalobe PL1 screwdriver

You need the right screwdriver for removing pentalobe PL1 screws.
on Amazon
Phillips PH00 screwdriver

Phillips PH00 screwdriver

You need the right screwdriver for removing PH00 screws.
from €10.84 on Amazon

Show all replacement parts for the P9

Steps

17 Steps

Switching off your device

Step 1

Removing the SIM card tray

Step 2

Removing the enclosure screws

Step 3

Lifting the display

Step 4

Disconnecting the battery contact

Step 5

Removing the rear camera

Step 6

Removing the control buttons

Step 7

Disconnecting the display contact

Step 8

Removing the motherboard

Step 9

Installing the motherboard

Step 10

Connecting the display

Step 11

Installing the control buttons

Step 12

Installing the rear camera

Step 13

Connecting the battery contact

Step 14

Installing the display

Step 15

Fastening the enclosure screws

Step 16

Installing the SIM card tray

Step 17

Getting started with the repair of your P9

If you get stuck or have questions, you can post a comment. We’d be happy to help.

17 steps

Switching off your device
Switch off your device. Press and hold the power button until a menu appears. Select “Power off” and tap again to confirm.
Removing the SIM card tray
Insert your SIM tool into the little opening on the tray to unlock the tray.

Remove the SIM tray and, if applicable, the SIM and microSD cards.
Removing the enclosure screws
2 × 2,8 mm P1 Pentalob-Schrauben

Unscrew and remove the two screws at the bottom of the device that keep the enclosure closed.
Lifting the display
Put the suction cup as far down on the display as possible, for example where it says “Huawei.” If the glass is too cracked for the suction cup to generate a vacuum, you can cover the display with tape.

Pull on the suction cup while using the pick to push the back cover against the table. As soon as a gap appears between the display and the enclosure, you can carefully insert the pick.

Also move the pick along the edges to disconnect the display on the sides. Continue to pull carefully on the suction cup.

The fingerprint sensor is installed in the back cover. A flexible flat cable connects this sensor to the motherboard. Be careful when you take off the display to avoid damaging the cable or board.

Carefully lift the display. Slowly open the device at the short upper edge like a book. Now you should be able to see the connection cable.

Disconnect the cable from the motherboard by carefully inserting the spudger below the contact and disconnecting it.
Disconnecting the battery contact
2 × 2,5 mm PH00 Phillips-Schraube

Antenna Cable

Disconnect the white antenna cable from the motherboard to uncover the screw below it.

Remove the two screws that hold the plate in place.

Using the tweezers, carefully remove the plate. The plate is hooked onto the motherboard both at the screw holes and in the middle.

Using the spudger, carefully disconnect the battery contact.

Then disconnect the wide flexible flat cable that goes to the lower board from the motherboard.
Removing the rear camera
2 × 2,5 mm PH00 Phillips-Schrauben

Remove the two screws that hold the plate in place.

Remove the plate.

Disconnect the camera’s plug contact from the motherboard by inserting the spudger under the contact.

Remove the camera from the enclosure.
Removing the control buttons
Disconnect the connection to the motherboard.

The control buttons are glued to the display frame. Insert the steel spatula between the buttons and the frame. Start on one side.

Then continue on the other side.

Remove the buttons.
Disconnecting the display contact
1 × 2,5 mm PH00 Phillips-Schraube

Remove the screw that holds the plate in place.

Remove the plate from the motherboard.

Disconnect the display contact from the motherboard. Insert your spudger at the edge of the plug contact and carefully pry it out of the socket.

Removing the motherboard
2 × 2,5 mm PH00 Phillips-Schrauben

Two screws hold the motherboard in the enclosure. Remove the screws.

The board is also clamped into the enclosure. Use the spudger in the middle of the right side to detach it.

Then put the spudger in the upper left corner and carefully pry out the board.

Remove the board.
Installing the motherboard
2 × 2,5 mm PH00 Phillips-Schrauben

Put the board back in the enclosure. Press it on a little so it will click into the enclosure.

The board has a little hole on the upper right and another one on the lower left. A tab on the enclosure has to go into each one. This will help you position the board.

Use the two screws to fasten the board to the enclosure.
Connecting the display
Display Connector

1 × 2,5 mm PH00 Phillips-Schraube

Connect the display contact to the motherboard.

Put the plate back on the contact.

Use the screw to attach the plate to the motherboard.
Installing the control buttons
Put the control buttons back on the frame. The little tabs on the frame will help you with positioning. The tabs have to go through little round holes in the buttons.

Press the buttons on firmly so the glue will stick.

Connect the plug contact to the motherboard.
Installing the rear camera
2 × 2,5 mm PH00 Phillips-Schrauben

Put the camera in the enclosure.

Connect the contact to the motherboard by carefully pressing the connector into the socket.

Put the plate back on to secure the contact.

Fasten the plate with the two screws.
Connecting the battery contact
2 × 2,5 mm PH00 Phillips-Schrauben

Connect the wide flexible flat cable to the motherboard by gently pressing the contact into the socket until you hear it click into place.

Now reconnect the battery.

Put the plate back on to secure the contacts. The plate has to hook on both at the screw holes and in the middle.

Fasten the plate with the two screws.

Connect the antenna cable to the motherboard.
Installing the display
Put the back cover at the short upper edge of the display and carefully connect the fingerprint sensor’s contact. You have to hear the contact click into place.

Close the device by folding down the back cover and pressing on the display.
Fastening the enclosure screws
2 × 2,8 mm P1 Pentalob-Schrauben

Use the two screws at the lower edge of the enclosure to close the device.
Installing the SIM card tray
Put the SIM tray and any cards back in your device. Make sure the tray is positioned properly.