1. Tear down the back housing
Turn off the phone firstly, eject and take out the SIM card tray afterwards. Hot air gun to blow on the rear battery door to soften the frame adhesive glue for easy separation. Use suction cup and ultra-thin metal sheet to slice around and separate the back battery door. The fingerprint sensor is installed on the rear battery door, it is no need to take it down because the flex is tiny and easy to be broken. Unbolt the two screws and the small metal panel, disconnect the flex cable so that the Huawei Nova 3 rear battery door can be entirely separated.
2. Take down the motherboard and other small parts
Disconnect the battery cable first, then unplug the mainboard flex cable and the signal wire port from the motherboard. Unbolt the six screws and take off the metal for fixing the flex cables on the mainboard. Disconnect the screen flex cable and the rear camera cable, take down the rear camera with tweezers from the middle frame. Disconnect the two front cameras on the mainboard and take off them. Take down the motherboard carefully from the middle frame. Loosen and take off the eight screws for fixing the speaker, take off the small metal shield for fixing the mainboard. Disconnect the mainboard and the signal wire port from the mainboard so that we can entirely take the main board off. Take off the speaker on the bottom and the Huawei Nova 3 charging port PCB board. Take off the vibration motor and the battery from the middle frame at last.
3. Separate the screen and the middle frame
The Huawei Nova 3 Screen is fragile, we need to be careful with it. Hot air gun blows on it and Slice around the screen with ultra-thin steel sheet to separate it slowly. Pry and flip over the screen apart from the middle frame carefully to separate it. Now the whole Huawei Nova 3 teardown process is completed. Just pay attention to the teardown parts and screws, don’t mess them up or lose any of them.
As the final suggestion, we should not try this on our Huawei phone if we are not familiar with mobile phone repair. The screen and the flex are easy to break, we should be careful with it. Moreover, you may check some Huawei replacement parts such as Huawei Mate20 LCD screen and digitizer on our website if you are running a repair shop. Leave your comments if you have any questions or contact us if you are looking for Huawei mobile phone parts, we are glad to help you.
