iPhone 6 power supply failure caused DFU mode to fail to exit, so it was repaired after the main power supply was restored.
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.
The iPhone 6s black screen does not respond, and the test is found to be caused by backlight booster inductance, and after replacement, the problem is repaired.
iPhone 6S Plus water damage can not be started. It is found that corrode on the side of USB chip is relatively serious, and the tin bead under PAD is also corrode. Replace the USB chip directly and repair the fault.
iPhone 6 Plus Front Camera does not work and the distance sensing cannot be used. It is found that it is caused by the small component Inveracious Soldering, and the problem is repaired after short-circuit.
iPhone X fell to no serviecs, and after detection, it was found that this fault was caused by middle pad break off, and Jump wire repaired the fault after repairing points.
Due to the double-layer motherboard, physical conditions or water damage corrode may cause the motherboard to touch the working line pad break off Inveracious Soldering or water damage corrode. Therefore, the functional failure of screen Touch failure appears. In the future, we only need to measure and touch water damage corrode, and then we can sum up the clear maintenance direction and ideas by combining the causes of the failure.
iPhone 6s mobile phone doesn't display, and no display was repaired several times. It was found that the backlight chip was burnt, and Jump wire made some repairs.
The iPhone 11 Pro signal is not good, and it is detected that the problem is repaired after the RF IC is damaged.
