If your iPhone's brightness lowers too slowly, there's an unconventional fix.
The newer and more expensive your iPhone, generally the better the display experience, including the screen brightness. For example, the standard iPhone 17, the iPhone Air, and the iPhone 17 Pro ...
A simple restart can clear temporary display controller glitches. Power off and back on. Visit Apple Store or authorized service for diagnostics. For iPhone 13, display replacement costs can be high; ...
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