Huawei nova3 mobile phone can’t be started for maintenance when it enters water.

Huawei nova3 mobile phone can’t be started for maintenance when it enters water.

Machine model: Huawei Nova3

Malfunction: the phone does not turn on when it is flooded.

Maintenance process:

I received a Huawei nova3, and the fault description shows that the mobile phone is flooded and can’t be turned on.

After getting the machine, disassemble it and take down the motherboard for observation.

Huawei nova3 mobile phone enters water and does not start up for maintenance Figure 1

Disassemble the shield, and the corrosion is very serious.

Huawei nova3 mobile phone enters water and does not start maintenance Figure 2

Remove the chip and process the pads one by one.

Huawei nova3 mobile phone enters water and does not start up for maintenance Figure 3

Huawei nova3 mobile phone enters water and does not start maintenance Figure 4

Replace the damaged chip, install the chip, power on the test, boot perfectly, and troubleshoot.

Huawei nova3 mobile phone enters water and does not start up for maintenance Figure 5