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iPhone 17 on iOS 27 screen dims every few seconds

iPhone 17 on iOS 27 suddenly dims screen every 5 to 10 seconds when using the phone in an active manner or if I'm simply reading for an extended time. Background app refresh is off because when I turn it on, it turns itself off in a few seconds. I don't know how to make it stay on. I used to never have problems with it. This is recent and I don't know if it's affecting the dimming of the screen so frequently butI thought I should mention it in case it is affecting it.


Hmmmm... why am I getting "your post must include text" message here? I see text in this text box!



4 replies

Try turning off Auto-Brightness in Settings > Accessibility > Display & Text Size, and check if your iPhone is overheating. Background App Refresh shouldn't cause screen dimming, so it may be a separate iOS issue.

try Settings, display & Brightness, Auto Lock, 5 minutes.

lisamartin123 wrote:
Try turning off Auto-Brightness in Settings > Accessibility > Display & Text Size, ..

Really?

That’s the path on my iPhone on iOS 27.x.x.