Huawei Nova5i will not be able to boot, connected to the electric current, and the soleno fragrance finds the faulty component, and the replacement capacitor is turned on normally.
Huawei Mate 30 Pro has no signal. According to the drawing, it is found that it is sent by U1602, and directly input and output by short-circuit. Boot test, perfect repair.
Huawei's Nova5i water damage has no backlight display, and BTB connector shows that the backlight anode has no diode value. Go directly to BTB connector Jump wire to BTB connector Fuse, and solve the problem.
The display of Huawei Nova7 screen is abnormal. After checking, the circuit from BTB connector display screen to resistor has been disconnected by corrode, so it is ok to repair the circuit.
Huawei Nova5 mobile phone can't be charged, and USB switch Switch is burnt out, resulting in USB corrode Short circuit, which is charged normally after replacement.
The water damage Won't Turn On is serious, and the detection VCC corrode is very serious. Redo the chip on the bottom of pin corrode and repair the fault.
Huawei P40 Pro camera can't be turned on, no sound, no WiFi and no Bluetooth, which is most likely caused by camera MOSFET.
Huawei P30 Pro WiFi can't be turned on,Fall hard caused the whole chip pad break off to be repaired, the short-term line was restored, and then the WiFi chip was put back for fault repair.
