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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.
Xiaomi 10S can't be turned on. Replace a battery holder and repair the fault.
HUAWEI Mate 10 can't be turned on. When the power on display current jumps to 126ma, it will be fixed. Remove the CPU and install REBALLING again, and repair the fault.
iPhone 13 suddenly won't turn on,remove the damaged capacitor,and the maintenance was completed.
Redmi K40 auto restart, after dismantling the machine, it was found that FPC was damaged, so it was replaced with a good one, and the fault was repaired.
HUAWEI Enjoy 10 can't search the network. After dismantling, it was found that pin at the bottom of the diversity low noise amplifier was blackened, so it replaced the new chip and repaired the fault.
