HONOR V40 has no ringing when calling, and there is no sound when playing video. Replace it with a new boost Inductor and repair the fault.
iPhone 12 restarts repeatedly, it was found that there was a problem with the BTB connector 1 after the c1xt1 was removed and the system was removed.
Xiaomi 11 Youth version can not be charged,short-circuit Current protection tube, replace the charging chip, mobile phone charging normal, fault repair.
HONOR 50 water damage is serious and can not be started. After replacing the pm7325 power chip, the startup current is normal, but the screen does not display. Replace a VCC chip of the same model and repair the fault.
iPhone 12 has no baseband, the motherboard separate, middle layer REBALLING,welding, fault repair.
Xiaomi 12 water damage failed to be charged. When charging connector was disassembled, traces of water damage were found. After cleaning, the fault was repaired.
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iPhone 7 Plus can't make a call. It shows no serviecs. After testing, it is speculated that there is a problem with Accessories. One by one, it is found that there is a problem with the ANT tuner. It will be good to replace it.
Xiaomi 11 Youth can't be turned on, replace a switch,Fault repair.
After the iPhone XR falls,no Baseband Version has no signal. Redo the Baseband CPU and repair the fault.
Oppo Reno 5 Pro can't start the machine and the battery is dead. After charging, the Restart repeatedly is turned on, and the CPU Inveracious Soldering is found when the machine is disassembled. The fault is repaired after the CPU is redone.
