In this guide, we are going to show you how to remove and replace the battery on Huawei Mate 9 smartphone.
In order to remove the battery, you need to remove the SIM card tray and back cover. Disconnect the fingerprint & power button cable and battery connector 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 of all, 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 battery
Disconnect the display cable and main FPC from the motherboard.
Uncover the ends of the adhesive pull tabs to get a good grip on them.
Pull the film slowly and continuously to release the battery.
Insert a card under the battery to separate the battery.
Because the battery is very thin and very easy to bend, I highly recommend you use the old card to pry the battery.
As you can see, there is a layer of foam adhesive used to hold the battery in place.
