Chosen Solution
I don’t know why my iphone 4s restarts when i only turn off it… The battery was changed, but in a chinese electronic shop. But i think that is caused by a problem on the motherboard, but i had been reading in some foros that it could be a problem on the dock or battery. Someone could help me to solve this problem? i would like to have a repared iphone…. Thanks a lot!
Open up the phone and unplug the power cable from the motherboard; see step 17 of this guide: iPhone 4S Power Button Replacement Turn off the phone. Does it reboot again? If not, replace the power button cable. If so, disconnect the dock connector cable (step 8 of the same guide as above) and turn the phone off again. If it doesn’t reboot again then you need to replace your dock connector. If it does (highly unlikely) then something else is amiss.
