How to solve iPhone 5s Reboot White Apple Logo Problem?

Received an iPhone5s, according to the customer description,the nut was installed by mistake when replacing the screen, it may be the motherboard layer is broken causing the symptom of rebooting white apple. After testing, the symptom are exactly the same as the customer description. As shown in picture 7-9-1. How to solve this problem with the best solution? Hope the article will help!

1. First, power off the device and remove the motherboard, we can see the screw column is damaged when observing with the microscope, there are traces of being pierced. As shown in picture 7-9-2 and 7-9-3.

2. Continue to scrape the motherboard layer, there are four wires were interrupted. As shown in picture 7-9-4.

3. So we connect the broken wires one by one, and then make green oil solidification. 4. Power on to test, it still reboot with the same symptom, replace U6 and U2 chip, fault is still as before, and the iPhone device reports error 9 at the last. 5. Finally, we remove the iPhone 5s NAND and reball it again with corresponding reballing stencil.

After that, the device can be rebooted properly, the fault is solved successfully.

Any professinional cell phone repair skills, please check out at www.vipfixphone.com