Chosen Solution
HI my iphone 7 plus fell down and now its on endless boot loop. if i restore by itunes there is 4013 error. i tried to use 3utool using ios 12 firmware and succefully reached 80% but it got stucked on updating base band .by the way on 11.4.1 it only reach 19% and stuck on device restore. everyone told me it cant be fixed there is no warranty an y suggestions?
No it is not repairable. The common fault here is an internal short on a unique chip to the device—the Qualcomm baseband CPU. This chip can not be replaced, however the phone can be made to boot once for data recovery with a donor chip. It can’t be a phone again.
There is of course a chance that you do not have the common fault—there are lots of other problems that produce the fairly generic error of 4013 “I don’t feel good” but the common fault is so prevalent it would be hard to even find any microsolderer willing to look at it. We would only address a phone with this presentation for data recovery, not for repair.
it could be repairable but it depends who you send it to, it would need to be a microsolderer that has access to a nand programmer incase its a nand issue, but it could be anything
