Screen brightness

Question

becky55 Author

Level 1

9 points

Screen brightness

The brightness on my screen keeps going up and down all by itself. What causes this? And what can I do?

iPhone 12

Posted on Apr 12, 2021 10:53 PM

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Answer 1

Top-ranking reply

Cheryl_I1

Community Specialist

Apr 13, 2021 5:06 PM in response to becky55

Hi there becky55,

Thanks for using Apple Support Communities. It sounds like you want to know why your brightness changes by itself. The iPhone has ambient light sensors that will adjust brightness levels based on the light conditions around you. Learn more here: Adjust the brightness and color temperature on your iPhone, iPad, or iPod touch.

We hope this helps!

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Answer 2

Apr 13, 2021 5:08 PM in response to becky55

It is Auto- Brightness and you can turn it off in settings.

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Answer 3

becky55 Author

Level 1

9 points

May 3, 2021 8:20 PM in response to Cheryl_I1

Thanks for your response. I had the problem no matter how I held it and at all times of day. I called Apple support, and someone there fixed it for me remotely.

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Answer 4

Cheryl_I1

Community Specialist

Apr 20, 2021 11:24 AM in response to becky55

Hi again becky55,

Does it matter which way you are holding your phone or what time of day it is? Are you using a case on your iPhone? If you remove the case, does the brightness still change intermittently? Does it seem to happen when using certain apps or functions? Or does it happen when your iPhone is left untouched for a moment?

We look forward to hearing back.

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