NO booting hanging the screen of HUAWEI Mate 30 Pro, replace the decryption battery and repair the fault.
Redmi 10X 5g version does not have Baseband, c4023,Short circuit, replace c4023, and repair the fault.
iPhone X does not turn on,after the Capacitor of Short circuit is removed,the fault is repaired.
HUAWEI Mate 40 Pro fingerprint function does not work, short Connect the power supply sense pin, fault repair.
Xiaomi 12 water damage is not charged after it is disassembled and cleaned. Plug in the charger to charge, and the fault is repaired perfectly.
No VCC was found on the main board no power on and rsmrst of MAXSUN ms-n520l. It was found that one of the resistors was damaged. After replacement, it turned on normally.
Lenovo cm3a760me motherboard boot into the system is normal, P port and USB port can not be used, add a 4.7K resistor on the chip, the function is normal.
Gigabyte ga-z87p-d3 motherboard no reset,auto power off restart, VCC1_5_The PCH VCC line was disconnected, and it was started up normally after replacement.
Lenovo m3a760m motherboard no booting, the actual fault is that the motherboard does not run out of code and there is no memory VCC. The oscilloscope measures the waveform and finds the fault point. The replaced component turns on normally.
The reset light of Gigabyte f2a85xm-hd3 motherboard does not run out of code. The VCC of each major unit is normal, and there is no vdda 2.5V VCC. Replace the Q62 and start the machine normally.
