Some iPhones On iOS 17 Are Randomly Restarting Overnight

If you’ve come to your iPhone after a night on the charger and found that you had to enter your passcode when Face ID should work, you aren’t alone. And it seems that nobody really knows what’s going on.

The issue, a 9to5Mac report notes, is that iPhones appear to be randomly restarting of their own accord during the night.

There doesn’t appear to be much of a pattern, but people notice that their passcodes are required in the morning. The oddity has been confirmed by screenshots of the iPhone’s battery usage — complete with a chunk of time where the iPhone appears to have been turned off.

It’s as if the iPhone is doing some sort of automatic update, but 9to5Mac’s Zac Hall notes that this new iPhone 15 Pro Max already has iOS 17.0.3 installed. With no newer version available, what is his iPhone doing when it powers off and then back on?

The whole thing is a bit of a mystery for now. For me, I noticed that Face ID wouldn’t work without entering my passcode first due to a restart. That’s not routine, but there’s nothing too strange about an iPhone soft crashing every once in a while.

It seems unlikely that iPhones are powering off for hours at a time, mainly because there is little reason for them then to power back on. For now, it’s a mystery. Hopefully it’s one that will get figured out sooner rather than later.

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