iPhone 6s mobile phone touchs the failure, the touch related to the touch is excluded, the screen is also replaced, and finally the R3144 should be empty. The pad is shorted, and the fault repair is fixed after disconnection.
iPhone X has no service, open Xin Zhi color drawings, find points map, see the trace between the upper motherboard and the lower motherboard, found that there are two signal lines, add the point to the point, fault repair.
iPhone 8 Plus consumes fast, standby leakage 140mA does not return zero, soiled in the fuzzy point, replace it after replacing.
The iPhone 6 Plus black screen can't open, and it is detected that the three VDD10_MIPIC Point short circuits on the CPU are caused, directly on the green oil, and the fault is perfect.
iPhone 6 single-board reset short circuit causes the phone boot screen without displaying, replacing the USB chip fix.
Xiaomi 6 earpiece has no sound, and it is repaired silently outside. This fault should be caused by the communication line coder power amplifier chip and CPU Inveracious Soldering. After Repeat welding, it will be installed and tested, and the fault will be solved.
iPhone 6 screen failure, after the test, the problem is replaced, and the problem is repaired.
Huawei nova 6 serviecs can't make calls, which is mainly caused by the disconnection of high, medium and low frequency transmission lines in Baseband signal part.
iPhone wifi signal is not good, refer to Xinzhizao Soft query software, measure ANT BTB connector to ANT Switch PCB circuit defect,Jump wire, and repair it perfectly.
