How to change brightness on iPhone (and stop it dimming)
The slider is in Control Center. If the screen keeps dimming, a setting is usually changing it for you.
The fix
Change brightness
- 1
Open Control Center.
- 2
Drag the sun slider up or down.
The fix
Stop the screen dimming by itself
- 1
Turn off Auto-Brightness.
Settings › Accessibility › Display & Text Size.
- 2
Turn off Reduce White Point on the same screen.
- 3
Check Night Shift in Settings › Display & Brightness.
- 4
Turn off Low Power Mode.
- 5
Let a hot iPhone cool down.
Frequently asked questions
Why is my iPhone dim even at full brightness?
Reduce White Point may be on, or the iPhone is hot. Check Settings › Accessibility › Display & Text Size.
Does lower brightness save battery?
Yes. The display is one of the biggest battery users, so lower brightness helps a lot.
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