The iPhone 8 Plus fell, the mobile WiFi could not open, the GPS signal was detected, and the test found that this fault is caused by the breakage of the motherboard, and the problem is repaired after the flying line.
Apple MacBook Pro A1989 notebook water damage caused Nand to burn out, and the computer turned on normally after replacement.
Huawei Nova7 can't access the LOGO of the system card when it is turned on, and it has been restarted all the time. The measurement found that after touching Capacitor Short circuit next to BTB connector, the fault recovered after picking auto power off.
The rear mobile phone Camera can't be opened. According to the drawing, we know that this signal has passed through a resistor to the CPU. Measure Normal value at both ends of the resistor and decisively remove the CPU cover Jump wire.
The display of Huawei Nova7 screen is abnormal. After checking, the circuit from BTB connector display screen to resistor has been disconnected by corrode, so it is ok to repair the circuit.
Apple MacBook Pro A2338 into yogurt caused the screen display to be abnormal, and the screen display was normal after replacing the backlight.
iPhone promox can't be charged. After disassembling the machine, charge the chip Short circuit, and replace it with a new diode value. After installation test, the charging is normal.
The MacBook A1502 notebook does not boot, it turns out that the capacitor C6305 is broken, and the fault repair is replaced.
Mac Air A1466 laptop cannot boot, second repair, detected found that the VCCDSW3_3 voltage is not normal, and the fault restoration is processed.
