There are some customers contact me that
his iPhone could have booted, but when he straightening it with hand because of
it was a litter curved, the iPhone 6 Plus turned into white screen and
restarting automatically, it reports error code 9 when rooted. It makes him
very distressed. Don’t worry, Vipprog have a guide about fix it
Firstly, enter system to test and iPhone will
reboot after showing Apple logo. According to repairing experience, the problem
of white screen is very likely to be caused by CPU, EEPROM chip and NandFlash. In addition, the customer has straightened the iPhone. We can
conclude the empty solder or welding joints drop on CPU may cause the problem.
Therefore, re-weld the CPU.
Remove the CPU, we found a circuit towards
chip disconnects, as shown in picture 1-1. Besides, the other circuit is not
stable either, so place a jumper wire to the relevant pin of chip.
1-1
How to wire the CPU solder pad is shown in
picture 1-2.
1-2
After wiring well, weld the wire to the pin
of chip under stereo zoom microscope, as shown in picture 1-3.
1-3
After finishing the above steps, reweld
CPU, as shown in picture1-4
Then the root goes on smoothly. Enter
system and activate interface. The problem of iPhone 6 Plus is resolved and and
back to normal work.
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