The reason your phone keeps dimming even with auto-brightness off

If your phone screen keeps dimming even when auto-brightness is turned off, several factors could be at play. One possible cause is overheating, either from external sources like direct sunlight or internal factors such as running power-intensive apps. When the phone gets too hot, it automatically reduces energy and performance to maintain a stable temperature, which includes dimming the screen to conserve power.

To address this issue, try moving your phone to a cooler environment, removing any protective cases, and closing down power-hungry apps.

Another reason for the dimming screen could be power-saving settings enabled on your phone. While these features help extend battery life, they can also cause the screen to dim as a default power-saving measure. Check your screen timeout setting, as a shorter duration can result in frequent dimming. Additionally, ensure that the iPhone's proximity sensor, which turns off the screen when the phone is held up to your ear during a call, is clean and not being triggered by dust or movement.

For newer iPhones, the Always-On Display feature should be considered. This setting keeps the screen on and dimmed, even when the device is locked, to preserve battery life. However, it may be enabled unintentionally, leading to the dimming issue. On Android phones, similar causes may include overheating or power-saving settings.

Keep your Android device cool, check for any obstructions on the proximity sensor, and review the specific power-saving options available on your device. If the problem persists despite trying these solutions, it may be necessary to have your phone inspected by a professional, especially if you notice abnormal screen behavior or signs of internal component damage.