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06-21-2018, 22:41 | #1 (permalink) |
Freak Poster Join Date: Mar 2008
Posts: 117
Member: 717129 Status: Offline Thanks Meter: 11 | Help, iPhone boot loop after faulty screen fitted I recently fitted a new screen to a iPhone 7 but upon start up the phone got to the apple logo and then restarted again. After searching the threads I thought it could be the audio ic which I tried to reball but there was no change so I put the phone aside. Today I had another iPhone 7 and thought I could use the new screen however, the same thing happened with this second phone i.e bootloop ( the phones restore normally but then revert to a boot loop ) I had a look at the screen cable under the microscope and found a bit of solder touching ground and the top four pins ( I think they go to pins 1,2,3 and 4 on the motherboard ) I have checked the board and discovered at least pin 2 is short to ground which the schematics show as "I2C_Disp_EEprom_SDA_Conn" I have checked FL4741, C4741, C4731 and FL4729 and all are shorted. Can someone please help and give me some idea where the short is possibly coming from as I have two customers iPhone 7's to repair. Thank you in advance |
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