Huawei P10 Plus mobile phone no booting, after redoing RAM, the fault was solved.
INNO3D gtx550it graphics card automatically shut down when heated. The oscilloscope measured the waveform, found the fault point, replaced the core power supply chip up1609q, and the power on was normal.
Asus X45VD notebook no booting, change the resistor position and repair the fault after brushing a BIOS.
Asus PRIME B250-Plus motherboard is powered on for one second,auto power off,Won't Turn On, PQ3004 is replaced, and the boot is normal.
ASUS U303L notebook repeatedly rebooted auto power off, dismantled auto power off to block PR9104, but stopped auto power off, and auto power off started normally.
The screen display of iPhone 1 7 mobile phone is abnormal, and the fault is repaired after replacing the integrated Inductor m2800.
GALAXY GTX750 Primitive installed the video card to drive the display screen is black or frozen. According to schematic running line measurement, a filter Capacitor was added, and the boot was normal.
Redmi 10x mobile phone no booting, after compensating the resistance, it starts up normally and the fault is repaired.
Self-dismantling led to notebook no booting, powering on large current and Current heating test to quickly check the fault point and repair it perfectly.