iOS 26.5 Brightness Issue: iPhone 14 Users Affected

First reported on r/ios on June 27, 2026.

The brightness on an iPhone 14 with iOS 16.5 keeps lowering on its own at random times. The user has tried turning off auto brightness, True Tone, and Attention-Aware features, but the problem persists.

What it looks like

• Brightness lowering on its own
• Auto brightness not working

How to fix it

1. Go to Settings.
2. Click Display & Brightness.
3. Turn off Auto Brightness.
4. Adjust the brightness manually.
5. If the issue persists, try resetting the auto brightness settings.

Affected products

• iPhone 14

Sources

• Brightness lowering on its own — reddit:r/ios

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Search terms covered: ios 26.5 brightness issue, iphone 14 brightness lowering, auto brightness not working