iPhone6 ​​Plus screen display abnormal fault repair

iPhone6 ​​Plus phone screen display abnormal fault repair

Machine model: iPhone6 Plus
Malfunction: The screen display of the mobile phone is abnormal, and it will be turned off automatically after turning it on.

iPhone6 ​​Plus phone screen display abnormal fault repair Figure 1.

Maintenance process:
I received an iPhone6 Plus of Previously repaired from the customer. The customer’s description is just a few words. The mobile phone Backlight/Screen Half Black, which will automatically turn off when it is turned on, is also Backlight/Screen Half Black when other screens are changed.

iPhone6 ​​Plus phone screen display abnormal fault repair Figure 2.

First of all, I opened the mobile phone and found that Screw hole was dried up at home, and it was badly damaged, and the backlight IC chip on the right was still missing.

iPhone6 ​​Plus phone screen display abnormal fault repair Figure 3.

Measuring diode value found PAD I2c1 OverLoad.

iPhone6 ​​Plus phone screen display abnormal fault repair Figure 4.
I2c1, those two points OverLoad, and the test point values are normal, and they are connected through the direction of ZXW PCB layer.

iPhone6 ​​Plus phone screen display abnormal fault repair Figure 5.
Go directly to the two places of Jump wire, and by the way, paint Solder Mask on the one where Screw hole was scraped at home (fortunately, it was not scratched at home).

iPhone6 ​​Plus phone screen display abnormal fault repair Figure 6.

iPhone6 ​​Plus phone screen display abnormal fault repair Figure 7.
All functions of the boot test are normal. At this point, the screen of Previously repaired iPhone6 Plus mobile phone shows that the abnormal fault has ended.