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I have some very strange problems with my iPhone 4S (16GB), I got it from my friend and he doesn’t know why the iPhone can’t start anymore. If I turn on the phone, I see the Apple Logo and after some seconds, the phones crashes and is restarting in a loop, always crashing on the Apple Logo. It looks like something is termenating the phone - is there a problem with the bootloader? I tried several things: Turn phone in DFU-Mode -> iTunes Recovery -> iPhone is restarting during the Recovery and loopsTurn phone in Recovery-Mode -> iTunes Recovery -> iPhone is restarting during the Recovery and loops againTurn phone on and hold the upper volume button -> reboots after some more seconds * I tried to restore the IPSW file from Apple Server for iOS 7.1.2. Here is a video: https://vimeo.com/107279805 I also can’t restore any files with programs like “Wondershare Dr. Fone” - the program needs a phone which can boot up. So, does anyone know any more tricks or something how I can “repair” the iPhone? OR: Does it look like a “dead battery”? Thanks!
Disconnect but don’t reconnect.. Use charger to turn phone on
I would change the battery as battery problem can cause this problem.
Hello try disconnecting power button flex from motherboard then try booting This worked on a iPhone 4 I did once
i think the issue is in charging IC need to replace it.
My iPhone 4s is having the same issue but when I disconnect battery and connect with just power flex connected to charger it doesn’t even boot while I know that iPhone 4&4s can boot with just power cable connected and better removed. I think it’s an NAND \ memory issue. Here is my link for iphone 4s problem https://www.youtube.com/watch?v=66aTUgxP…
