My wifes ip4 keeps turning itself off. Searched for solutions and tried holding home+lock for 15 seconds and nothing, did the same while connecting it to computer, and nothing. The phone will turn on if connected to the wall charger but then turns itself off again shortly after being disconnected. Battery says 100% when it comes off the charger. The phone is only 1 month old, brand new from the carrier. Hasn't been dropped, hasn't been near water, and has been in an otterbox case from minute 1.
Closest apple store right now is almost an hour and a half away. Supposedly they are opening an apple store here next year but that doesn't help much right now. My carrier hasn't been able to give me any useful advice either.
I will be doing a full restore as soon as I have time. Her phone also starting dropping the wifi connection a couple days ago even though in wifi settings it shows as connected and just today it stopped ringing with incoming calls.
Try the restore option as stated.... If no luck then to me sounds like that 90 min drive is a need. I know the feeling the nearest for me is the same drive. but i like to go to the store just to dream of owning a mac lol