ASUS ROG Z490 motherboard doesn't have CPU VCC, replacing CPU VCC chip is invalid, replacing IO chip, and the boot is normal.
Lenovo G505 laptop Won't Turn On, after testing, found that the chip was not soldered well, and then processed EC, and the fault was perfectly repaired.
Huawei Honor 20 mobile phone can't get out,power amplifier VCC IC, take down the chip and fix it.
Lenovo 300S-14isk notebook didn't respond when it was turned on, and it was successfully done by replacing a small component.
The fingerprint of iPhone 7 didn't respond. After detection, it was found that the fingerprint holder was disconnected. The fault was repaired after flying the line.
Rtx2070 graphics card running 3D Blurred screen flicker exit, replace the video memory chip, the display is normal.
Lenovo Xiaoxinchao 7000-13 notebook computer Won't Turn On, this is common failing. After testing, it was found that Capacitor next to the charging chip and Capacitor of the screen VCC interface were damaged, and the fault was repaired after replacement.
iPhone 6s the screen does not display , and the fault will be repaired after replacing the USB chip.
iPhone 6S Plus mobile phone Won't Turn On is detected to be caused by an Capacitor. After replacement, the problem of Short circuit disappears and the fault is repaired.
