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Display on iPhone 8 won’t turn off.

Auto lock under display and brightness set to 1 minute but phone screen display does not go dark when left sitting untouched for extended periods of time. Can manually do this by pressing side on/off button .

Posted on Oct 23, 2017 4:07 AM

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Posted on Oct 23, 2017 4:37 PM

Hi amserf,

I understand you're having some trouble with the Auto-Lock on your iPhone. I would want my display responding as expected, so let's try and find a fix together.

First, let's force close any open apps, and restart your iPhone. Here's how:
How to force an app to close on your iPhone, iPad, or iPod touch - Apple Support
Restart your iPhone, iPad, or iPod touch - Apple Support

After your iPhone is through restarting, let's go to Settings > Display & Brightness > Auto-Lock.
Set the timer to 30 seconds and then let's wait for the timer to run out and lock the screen. If that works, set it back to 1 Minute and test again.

If that doesn't fix the problem, make sure your iPhone 8 is backed up and up to date:
Update the iOS on your iPhone, iPad, or iPod touch - Apple Support

Let me know what happens.

Thanks for using the Apple Support Communities.
27 replies

Display on iPhone 8 won’t turn off.

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