iPhone XR has no sound. After testing, it is caused by the damage of one of the ring amplifier chip and vibration control chip, which can be solved after replacing the chip.
iPhone 7 battery replacement led to the mobile phone screen does not display, this fault is caused by Screw hole perforation, Jump wire after the problem was repaired.
iPhone 6 water damage can't be turned on, and the U1501 chip is found to be defective. After replacing one, the power-on current is normal for current of change, and Hang Logo(white apple)is displayed on the screen, and the board can be repaired.
iPhone 8 Plus water damage can't be turned on, the charging chip and USB chip corrode are serious, and the surrounding small Capacitor is burnt black, so repair it after replacement.
The iPhone6 Plus phone has no hands-free, detects that the CPU problem is found, and the UF is turned on, and the ringtone is normal.
iPhone 6s mobile phone can't boot, boot card white apple, starting from 90 left, better hard disk and battery seat, successfully repair.
mobile phoneFace ID can't be unlocked after dropping, which makes it inconvenient for users to unlock.Face ID components are bound with CPU, so long as it is the original components, the repair success rate is still very high.
The WiFi signal of iPhone X mobile phone is not good. After testing, it is found that the connection between C7705 and C2401 is disconnected, and the test fault of Jump wire is normal.
iPhone XS Max water damage Face ID is not available. It is found that the fault is caused by the damage of water damage dot projector module.
