Mobile phone influent dark ill ! Apple iphone 6 with no backlight display actual maintenance

Machine model iphone 6

Fault phenomenon mobile phone searching for water , there is no display backlight

maintenance process

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 . :

手机进水暗病多!苹果iPhone6有显示无背光实战维修

display lies in pseudo soldering pin seat

Remove the rear seat will display , we may see more clearly .

手机进水暗病多!苹果iPhone6有显示无背光实战维修

soldering pin

The pad , the project is ready to fill the new seats , startup test , the screen was bright , the display normal .

手机进水暗病多!苹果iPhone6有显示无背光实战维修

normal display

This case by Xunwei Shenzhen shop provides fast repair

attention Xunwei fast repair in the headline number , check the more technical articles !

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