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Why does the brightness dim on iphone12 when auto is set off?

This is a serious bug!

Posted on May 17, 2021 1:22 PM

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Question marked as Top-ranking reply

Posted on May 17, 2021 1:32 PM

There are several features that can cause the screen to dim:

  • Settings/Face ID & Passcode/ Attention Aware Features.
  • Settings/Accessibility/Auto Brightness.
  • Settings/Face ID & Attention/Attention Aware features (actually another way to activate the first one).
  • In addition, the screen will dim a few seconds before the phone locks if auto-lock is enabled.


You also have a strange idea of what a “serious bug” is. A serious bug is a phone that crashes every time you try to access an app. What you describe is a minor annoyance.

1 reply
Question marked as Top-ranking reply

May 17, 2021 1:32 PM in response to JjAaYyYy

There are several features that can cause the screen to dim:

  • Settings/Face ID & Passcode/ Attention Aware Features.
  • Settings/Accessibility/Auto Brightness.
  • Settings/Face ID & Attention/Attention Aware features (actually another way to activate the first one).
  • In addition, the screen will dim a few seconds before the phone locks if auto-lock is enabled.


You also have a strange idea of what a “serious bug” is. A serious bug is a phone that crashes every time you try to access an app. What you describe is a minor annoyance.

Why does the brightness dim on iphone12 when auto is set off?

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