Lenovo xiaoxin-15 2019 standby 0.17, there is an 8-pin chip (pu2101) beside the BIOS that is hot. Find one on the material board and replace it. It turns on instantly, and the fault is repaired.
Gigabyte gv-n105td5-4gd display card does not have VCC. It connects corner 1 and corner 4 together directly. The test can work normally and the repair is completed.
After iPhone 7 water damage, there is no signal. Clean the place of corrode, start test and repair the fault.
Brief introduction of z490 motherboard workflow
ASUS RTX 2060 graphics card does not VCC, re install the video memory core, as well as Stencil, the maintenance is completed.
Lenovo ThinkPad X1 laptop does not turn on when it is cold. When encountering Lenovo x1, it is not necessarily the CPU that causes this problem. It may be caused by the faulty soldering of the crystal oscillator. The machine is currently in normal use, and the fault is repaired!
NO booting hanging the screen of HUAWEI Mate 30 Pro, replace the decryption battery and repair the fault.
the whole board of sotay geforce RTX 2060 super-8gd6 graphics card is not VCC, the fan starts to run wildly, does not recognize the card, installs the radiator graphics card, the computer operates normally, troubleshooting!
Power on no power on with Dell 5535, overhead 100m resistance with enameled wire, directly connect to pin of Switch jpwr, press Switch, connect switch to screen,booting up.
Model 5535 Dell
