error 4005

Dmytro 12/13/2019

Hello, I have an iPhone 7 with error 4005. It do not switch to recovery mode during flash, and after few seconds give error 4005. I removed flash ic and check with my jc programmer , it read all data an, mac , etc. then I flashed backup from working one, and correct sn, macs and model. After soldering back situation is same - 4005. Then I took one flash randomly and solder it without any programming and sn correction , and after that phone normally programmed and powering on. But activation is impossible in this case. I have tried more times with other flash ic’es whit uploading original data but no success. What I’m doing wrong?
Answers

REWA

01/11/2020

Check the CPU part, if it sure the NAND flash is ok, then the problem is on CPU.
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