ASUS GL552VW USB interface didn't respond. After testing, it was found that there was something wrong with the small board, and the fault was repaired after the branch.
iPhone XS Max did not make a call. It was found that it was caused by the main board pad break off. After the installation test, it was perfectly repaired.
iPhone mobile phone has no sound. This fault is caused by the damage of coder IC. Replace coder IC and return to normal.
Xiaomi 9mobileThere is no signal fault, which is caused by IF power amplifier, and the fault is repaired after Reballing.
Lenovo IH61MA motherboard Won't Turn On, no CPU VCC, no reset, but memory maintenance.
Lenovo ideapad Y500 notebook computer often restarts, which is found to be caused by PCB circuit defect after detection, and the fault is repaired after Jump wire.
After the heavy fall of iPhone x, the mobile phone can not be turned on. After detection, it is found that it is caused by the damage of the main power supply filter capacitor. Deduct and make up the missing point, and repair the fault.
The screen of Lenovo Y700-14ISK notebook is not bright, which is another Capacitor fault.
Huawei P10 Plus mobile phone Won't Turn On is judged to be caused by the abnormal operation of CPU storage.