Hello, first time poster here...

My iPhone 5S updated to iOS 10.3.2 about a week and a half ago and has since been restarting itself randomly. I might get five minutes of use out of it, or I might get 30. It might drop a call, or it might decide to restart when I'm in the middle of typing an email. The only predictable time that it restarts is if it has gone through the restart and the lock screen finally appears after the apple logo goes away... if I don't punch in my passcode before the screen blacks out, and then I have to wake the phone up to unlock it, it will ALWAYS shut itself off again.

At any rate, I've tried just about everything that I can think of, and everything Apple support can think of, with no success (including a full restore to new). Apple is now suggesting that it's a hardware problem (which seems rather coincidental to me... I had a phone that worked just fine before the update).

Any thoughts?