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Hannahcasey2 Author

Level 1

4 points

Phone screen

My phone screen sometimes is very dark even though the brightness is all the way up

iPhone 11

Posted on Feb 22, 2022 4:38 PM

Top-ranking reply

y_p_w

Level 6

17,690 points

Posted on Feb 22, 2022 6:51 PM

That can happen if the internal temperature is too hot, but before it gets to thermal protection (or even automatic shutdown). It doesn't necessarily give a warning about dimming, but it will if it goes into thermal protection (where it has minimal operation just putting out a message and monitoring the temperature) looking like this.

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Phone screen

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