It is hard to get it back on. I have first reset the settings, but that didn't help. I have done restore, but again it goes off all te
The battery is full.
Is it too much? Could/should I downgrade?
iPhone shutting OFF by itself is most often due to faulty battery. You have already done a Restore. Make Genius reservation and take iPhone to Apple Store for quick free battery dianostic testing to confim that it is a battery problem.
Retrieving data ...