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MechHub
User level: Level 1 (4 points)

iPhone 16 Pro Max display randomly dims after iOS 27.0.1 update

After updating my iPhone 16 pro max to iOS 27.0.1 I’m experiencing random screen dimming. I don’t think it’s an overheating situation because it has happened after idle periods and doesn’t seem to be tied to any specific apps. This started the day I updated to 27, has not happened outside of obvious overheating (ambient temp or sun exposure).


I’ve attached a screenshot of my display settings. Any help would be appreciated. I’ve searched for similar posts but have not found one.



[Edited by Moderator]

Posted on Oct 18, 2026 7:33 AM

5 replies

WheelieNick
User level: Level 9 (74,110 points)

Oct 18, 2026 7:42 AM in response to MechHub

Have you tried a forced restart to see if the issues persist?


  1. Press and quickly release the volume up button.
  2. Press and quickly release the volume down button.
  3. Press and hold the side button.
  4. When the Apple logo appears, release the side button.


LD150
User level: Level 10 (107,674 points)

Oct 18, 2026 7:49 AM in response to MechHub

Try increasing the auto-lock to 3 or 5 minutes. With 1 minute it will dim at about 30 seconds which you be butting up against randomly.

And avoid low power mode which has an even shorter auto-lock.

MechHub Author
User level: Level 1 (4 points)

Oct 18, 2026 10:18 AM in response to WheelieNick

Yes, unfortunately nothing changed. Forgot to mention in post, it’s lowering the screen brightness to its lowest settings, I can adjust manually from the control center (?) screen by pulling down from top right.

LD150
User level: Level 10 (107,674 points)

Oct 18, 2026 1:45 PM in response to MechHub

MechHub wrote:
Forgot to mention in post, it’s lowering the screen brightness to its lowest settings, I can adjust manually from the control center (?) screen by pulling down from top right.

Yes but did you try my suggestion?

MechHub Author
User level: Level 1 (4 points)

Oct 18, 2026 10:19 AM in response to LD150

Forgot to mention in post, it’s lowering the screen brightness to its lowest settings, I can adjust manually from the control center (?) screen by pulling down from top right.

Originally posted at discussions.apple.com/thread/256378372