Why Does My Phone Randomly Go Dim?

Most of the time, your iPhone keeps dimming because Auto-Brightness is turned on. ... You'll have to turn off Auto-Brightness if your iPhone keeps dimming and you want it to stop. Open Settings and tap Accessibility -> Display & Text Size. Then, turn off the switch next to Auto-Brightness.

Why does my iPhone randomly dims with auto-brightness off?

If your iPhone's display keeps dimming, it's likely because of features that automatically adjust the screen's colors or brightness based on light conditions or battery life.

How do I stop my iPhone from dimming?

How to turn off auto-brightness on your iPhone
  1. Launch Settings.
  2. Tap General. Tap General in Settings. ...
  3. In General, tap Accessibility. Select Accessibility. ...
  4. Under the Vision submenu, tap Display Accommodations. ...
  5. Find "Auto-Brightness" — to turn it off, tap the slider off to the right so that it's no longer green.
James H. Sterling

James H. Sterling

Environmental Science & Climate Journalist

James Sterling reports on renewable energy developments, climate policy, ecological conservation, and green tech innovations around the globe.