Machine model iphone 6
Fault phenomenon mobile phone searching for water , there is no display backlight
machine after the first test , after starting up can display white apple , but the backlighting is inactivated .
Remove the mainboard , use a multimeter to measure the seat and the display of the three backlight associated pin when it is found that , due to the main board into the water , the backlight and the backlight power supply circuit 1 , two imaginary pin is welded . FIG . :
Remove the rear seat will display , we may see more clearly .
The pad , the project is ready to fill the new seats , startup test , the screen was bright , the display normal .
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