Chosen Solution
Hello There, My iPhone 3GS is stuck in some sort of boot limbo. It reboots in ~ 5 minute intervals regardless of whether it is plugged into a power source or not. After a boot loop exhausts the battery life, the screen prompts to recharge indicating a terminally low battery. Upon plugging into a power source, the battery charges just enough to re-enter a boot loop. I should note that I have tried three different and new batteries, each one having the same result as the next. As you can imagine, it has been frustrating receiving each and every new battery from iFixit, installing, then hitting this same dead end. I’ve thought of other malfunctions: possibly a worn out logic board? Possibly faulty cables? I’m not certain as I cannot test either for functionality. Just before having this issue, I was using a new battery from iFixit with really stellar results until one day last month, my Bluetooth randomly and automatically attempted to connect and search for devices (which was perplexing). Simultaneously, the phone froze off-and-on, then rebooted and prompted to reactivate with a cell provider as if it were brand new. I am able to restore with iTunes by placing the iOS in recovery mode, although upon each restore final reboot, the iOS never loads, and the reboot cycle continues. What I have is a brick and three new iPhone 3GS batteries I cannot use. I’m very close to getting rid of the 3GS but any advice would be appreciated. Thanks, Randy.
I have the same boot loop on my 3GS. Searched on the net for solutions, nothing works. More than five hours work rebooting attempts with and without iTunes. Non of the web hints worked properly. First symptom was the touch screen not responding at all, none of the buttons, not the sweep to start and put the password. Then Aborted the process by pressing on/of button together with the home button, and restored via iTunes. then problems with the SIM code (please do unlock the SIM card on the phone -that isn’t bloody working!!!). Then suddenly I got one step further, for some reason I could unlock the SIM card and the “restore from iTunes started; during this restoring proces, EVERYTHING worked, I could get in the phone and all buttons (as far as iTunes already restored them) worked properly…until the restoring process wash finished…the screen was blocked again and I landed in he same swamp.. Apple this is a disgrace ! By the way I replaced the battery with an iFixit kit a few months ago…. :-)
Hello unplug the proximity cable under the lcd connectors and see does it still boot loop happened to me before and it was a new proximity that was needed
So your iphone booted without the battery?
test
https://hard-resets.com/iphone-3gs-hard-… From DFU Mode Sometimes, hard resetting the iPhone 3GS doesn’t do the trick. What you need to do in this case is to enter DFU mode ( Device Firmware Upgrade ) that allows you to restore the device from any state. This is a bit tricky so please follow these steps thoroughly: DFU Mode How the iPhone 3GS looks in DFU Mode Make sure the device is turned off and that it is not connected to the PC. Hold down the Home button and connect the 3GS to the computer ( don’t release the Home button yet ). Once the iTunes and usb cable logo appears on the iPhone appears, you can let go of the Home button. Restore the device using the iTunes method from above. There may be some reasons for your device to be bricked. The most important thing is to make sure you have enough battery when upgrading to a newer software version, because interrupting the upgrade will lead to a bricked iPhone 3GS and a reset to factory setting is needed.
