iPhone 17 Pro randomly crashes to lock screen but device remains awake

iphone 17 pro on ios 27 will sometimes randomly go to the lock screen with no animation/fading/ what you usually see when locking. phone still stays awake though; always on doesn’t activate cause the screen doesn’t turn off. face id and other non-passcode unlocking methods still work as well. anybody else experiencing this?

Posted on Sep 18, 2026 9:44 AM

1 reply

Ingo2711

Level 10 (93,009 points)

Sep 18, 2026 12:14 PM in response to klouttt

Did you already force restart your device?

Force restart iPhone - Apple Support

If this does not solve the issue, try to reset the iPhone to factory settings, to rule out, that the iOS software caused the issue.

To rule out defective data from the backup, set it up as a new device, don't install any 3rd party apps at this point and test it again.

If the iPhone is stable, restore your data from the latest backup and see if it stays that way.

Restore your iPhone, iPad, or iPod to factory settings using a computer - Apple Support