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iPhone XR randomly dims

I purchased this iPhone XR about half a year ago. 

Software version is 13.3.1


Accessibility> Display & Text Size> Auto-Brightness is OFF



Accessibility> Face ID & Attention> Attention Aware features is OFF


Low Power Mode is OFF. 


This happens while charging and while not plugged in. It happens when battery is full and when it’s not full.


I have gone through all the settings, there is no auto-brightness or any other setting that should be causing the phone to dim. 


It happens several times a day. I’m not sure when it started probably a few months ago and has been occurring every single day. 


iPhone XR, iOS 13

Posted on Apr 10, 2020 7:07 PM

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Similar questions

2 replies

Apr 12, 2020 1:35 PM in response to Alliiz

True Tone is off. I have tried this before with both True Tone on and off also.


I should have added: the screen dims randomly for a while then brightness by itself again. I haven’t kept track if it’s for less then a minute or for a few/several minutes


It happens frequently throughout the day whether it’s daytime or nighttime (in a bright room, or dark room) and is seemingly unaffected by the rooms brightness because even in the middle of the night when in a room that is completely dark, the phone whether display is at 100% or not, it will still dim randomly.

iPhone XR randomly dims

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