Today, we are learning and discuss to DIY fix iPhone 6 Plus automatically restart after white Apple logo appears on iPhone touch screen. The trouble details is that the this iPhone can be display normally after boot, but the iPhone was a little curved, so we straighten it with hand, and then the iPhone restart automatically. Now, we need to fix it by phone repair tools.
First, we flash it by iTunes, it shows unknown error 9. According to repairing experience, the unknown error 9 mostly caused by iPhone NAND flash error and the problem of white screen is very likely to be caused by CPU, chip and EEPROM. 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, reweld the CPU.
Remove the CPU, we find a circuit towards chip disconnects. Besides, the other circuit is not stable either, so place a enameled wire to the relevant pin of chip.
Now, we use QUICK 861DW to solder the jump wire on the CPU solder pad. After wiring well, weld the wire to the pin of chip under microscope, and then weld the CPU.
Finally, flash iPhone again, now it runs successfully. Get into IOS to activate it and then check all functions on iPhone, all works fine. The repairs end!
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