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  • I have unchecked Auto-Brightness under Settings app → General → Accessibility → Display Accommodations.

  • I have also disabled Night Shift under Settings app → Display & Brightness.

  • I have Low Power Mode turned off under Settings app → Battery.

However, every time I use the iPhone for either more than 5 minutes or use any apps, the brightness automatically dims down. It’s frustrating since I play games and use apps all the time. The brightness keeps fluctuating.

As I understand, there are no hardware faults. I believe this is purely a software bug. I would really like some help.

I am using an iPhone 7 running iOS 12.3.1.

  • What is the model of iPhone that you are using? – Nimesh Neema Jun 9 at 1:50
  • @NimeshNeema I am using an iPhone 7 – Name changed to mask identity Jun 9 at 1:51
  • Do you observe the brightness change while working in a single app or does the change occur only when switching between apps? – Nimesh Neema Jun 9 at 2:01
  • @NimeshNeema It dims once and then stays dimmed even if I switch through apps. I did observe that when I switch to a white background (some white wallpaper) it turns up again, but that happened once or twice. It usually stays dimmed for a while, and turns up by itself. – Name changed to mask identity Jun 9 at 2:27
  • @NimeshNeema I had an iPhone 6 last month and it happened there as well. It also happened on another iPhone 8 I had. That is why I believe it is a software issue with ios 12 or later. – Name changed to mask identity Jun 9 at 2:28

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