A customer sent us an iPhone 6S to fix, and the problem with the iPhone 6S was that it didn't start. After we received the iPhone 6S, we tested it. IPhone 6S looks good, iPhone iPhone does not respond to the same button as the power button. It does not respond when charging iPhone 6S.
Disassemble the iPhone 6S, connect iPhone
motherboard to the DPS DC power supply, the boot current stuck in 50mA, which is abnormal.
Take out the iPhone motherboard, check the
appearance of iPhone motherboard, there is no water damage or drop damaged
phenomenon.
Put it under the Trinocular Stereo Microscope, and observe carefully, we found there is
a bruise next to the iPhone Nand flash that
hit by screws.
Scrape the circuits on the bottom by BGA graver blade, and then apply some green UV oil to it, blow it by
QUICK 861DW hot air rework station.
Finally, assemble the iPhone 6S and test
it, the iPhone 6S can be turned on properly, the problem has been solved!
If you need more cell phone repair technical support, contact us on www.vipfixphone.com
If you need more cell phone repair technical support, contact us on www.vipfixphone.com
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