IPhone 11 is restarted once every three minutes. The pin solder is very little when observing the battery holder under the microscope. The test will not be restarted after the tin is replenished. After it is left for several hours,mobile phoneStill occasionally restart, refer to the maintenance instruction on Xinzhizao Soft, find the fault and repair it perfectly.
iPhone 7 mobile phone does not display when it is turned on, which is found to be caused by PP5V7_LCM_AVDDH shorted to ground displaying VCC. Replace the filter Capacitor on this line for perfect repair.
iPhone 7 Plus mobile phone water damage no booting, after replacing PP5V7-MESON_AVDDH filter Capacitor and Inductor L3901, the problem was fixed.
iPhone 8 does not charge no booting. It is found that it is caused by a broken Capacitor, and the fault is repaired after replacement