Ive had a couple of cases where the phone complete froze. I could not turn the screeen off or open any apps. The first time it happened I did a force restart. The last 2 times I waited about a minute or 2 and it responded. My guess since it does respond after a min or so its a software issue rather then hardware. Im assuming some rogue app? Happened on 13.1 and 13.2. Thoughts. I really don't wan to do a wipe and restore as it takes me a good week to get everything back the way I want it and that's with backup.