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How to Fix Auto-Brightness Not Working on Your iPhone: Helpful Solutions

Auto-brightness means you shouldn't need to change your iPhone screen brightness yourself. Here's what to do if it isn't working.


Auto-brightness is a valuable feature that ensures your iPhone's screen brightness levels adjust automatically to suit the surrounding light conditions. It optimizes your viewing experience by increasing brightness when you're in bright environments and decreasing it when you're indoors.


However, when this convenient feature fails to work properly, it can hamper your user experience and potentially drain your device's battery faster. In this article, we will explore various solutions to fix the auto-brightness issue on your iPhone and restore its functionality. Follow these steps to optimize your iPhone usage during any time of the day. (How to Fix iphone Auto-Brightness)


1. Clean Your iPhone's Notch Area

The ambient light sensor, responsible for adjusting your screen brightness based on your surroundings, is located at the top of your iPhone screen. Over time, body oils, sweat, and other residue may accumulate in this area, obstructing the sensor's functionality.


 iPhone auto-brightness not working
Ho to fix iphone auto brightness

One common cause of sensor blockage is holding the phone against your ear during long phone calls. To resolve this issue, take a clean, dry cloth and gently wipe the top portion of your iPhone screen. This simple act should restore the proper functioning of the auto-brightness feature. If the problem persists, proceed to the next solutions.


2. Restart Your iPhone

If you haven't restarted your iPhone in a while, it can lead to various issues, including the malfunctioning of auto-brightness. A quick and straightforward fix is to restart your device. After the restart, your iPhone should operate flawlessly, including the auto-brightness feature.


3. Enable and Disable Auto-Brightness

An effective workaround to address auto-brightness problems on your iPhone is to toggle the feature on and off. Here's how you can do it:


fix iphone auto brightness
Ho to fix iphone auto brightness

Open the Settings app and tap on Accessibility.

  • Locate and select Display & Text Size.

  • Turn off the Auto-Brightness option.

  • Restart your iPhone.

  • Navigate back to Settings > Accessibility > Display & Text Size.

  • Enable the Auto-Brightness option.

By following these steps, you can potentially resolve any underlying issues causing the auto-brightness malfunction.


4. Update Your iPhone

Running an outdated version of iOS on your iPhone can introduce software bugs that affect various functionalities, including auto-brightness. To ensure your device is up to date and equipped with the latest features, bug fixes, and security patches, it is recommended to update your iPhone to the newest version of iOS. Follow these steps to update your device:


iPhone auto-brightness not working
Fix iphone Auto-Brightness

  • Open the Settings app.

  • Tap on General.

  • Select Software Update.

Now, your iPhone will check for available updates, and if there are any, you can proceed with the installation. Once the update is complete, your device should no longer experience auto-brightness issues.


5. Try Turning Off Night Shift

If the previous solutions fail to resolve the auto-brightness problem, you can attempt disabling the Night Shift feature. Here's how you can do it:

  • Open the Settings app and select Display & Brightness.

  • Locate Night Shift and tap on it.

  • Disable both the "Manually Enable Until Tomorrow" and "Scheduled" options.

Disabling Night Shift might help in rectifying any conflicts that could be affecting the auto-brightness functionality.


6. Remove Any Thick Screen Protectors

Using an exceptionally thick screen protector on your iPhone can interfere with the proper functioning of the ambient light sensor. It is advisable to remove such screen protectors to allow the sensor to work optimally. If you prefer to have a screen protector, choose one that is thinner or of medium

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