Chosen Solution
Hi there, i am running into a strange issue with my iphone. i have repaired a smashed back cover and changed the wireless charging coil because the previous one was damaged. So, putting the phone back together I have noticed that the phone is only able to boot while the LCD is not attached. I have tried different configurations to troubleshot what could be the issue, and my results are: touch screen works ok earpiece works ok other sensors and cameras works ok. the LCD is original and has not been damaged. the phone was working ok for a few days after it was damaged (before repair) and have suddenly stopped working. I thought that it was due to the damaged charging coil, but now I think that was probably the LCD. When the screen is attached, I have got no picture, but the phone is able to go to recovery and DFU mode. if I try a restore it will systematically fail at 18% in 3utools, and looking at the logs it will show: USB error (000000) without the screen I am able to restore the phone. what are your thoughts guys? thanks cheers
FYI swapping screens between 2 phones have solved the problem permanently. Even fitting back the original screen to the original phone is working now. So I have no answer for the “why”, but at least problem is solved! I thing that this process have triggered something that have reset the unhappy line of code.
From what I remember, I believe I once watched a REWA video regarding the NAND in iPhones and what typical indicators you can look for to account for failure of the NAND, and I think anything between 17%-20% flash progress stalling in 3U indicates general NAND failure. That would be my guess, but beyond that give it a shot to put the motherboard under the microscope and peel the heat transfer tape off the board and look for any obvious component damage. After that, if you have one, try looking for shorts on the board via a thermal camera.
I currently have the exact same issue with an iPhone 12 pro max… did you find the cause?
