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Why is my screen brightness dimming automatically?

Have you ever wondered why your screen brightness keeps dimming on its own?

Turn Off Auto-Brightness and True Tone

To stop your screen from dimming automatically, you can Turn Off Auto-Brightness and True Tone on your device. Auto-Brightness adjusts the screen brightness based on ambient light conditions, which can sometimes lead to unexpected dimming. Disabling this feature allows you to manually control the brightness level of your screen.

Similarly, True Tone adjusts the white balance of your screen to match the ambient lighting, which can also cause the screen to dim unexpectedly. By turning off True Tone, you can prevent this automatic adjustment from affecting the brightness of your screen.

To disable Auto-Brightness on an iPhone:
1. Go to Settings.
2. Select Accessibility.
3. Tap Display & Text Size.
4. Toggle off the Auto-Brightness option.

To disable True Tone on an iPhone:
1. Go to Settings.
2. Select Display & Brightness.
3. Toggle off the True Tone option.

Manually Adjust Brightness Levels

Brightness Level Adjustment Steps
Too Dim 1. Go to Settings
2. Click on Display
3. Adjust the Brightness slider to increase brightness
Too Bright 1. Go to Settings
2. Click on Display
3. Adjust the Brightness slider to decrease brightness

For more information on why your screen brightness may be dimming automatically, read our article Why is my screen brightness dimming automatically?

Disable Attention-Aware Features

If you are experiencing your screen brightness dimming automatically and want to disable this feature, you may need to adjust your device’s settings. One common reason for this issue is the presence of Attention-Aware Features, which adjust screen brightness based on your gaze.

To disable Attention-Aware Features on your device, follow these steps:

1. Go to your device’s settings. This can usually be found in the “Settings” app on your device.

2. Locate the Accessibility settings. Look for the “Accessibility” option in the settings menu.

3. Find the Display & Text Size settings. Within the Accessibility settings, look for the Display & Text Size option.

4. Disable Attention-Aware Features. Look for the option to disable Attention-Aware Features and toggle it off.

By following these steps, you should be able to disable the automatic screen brightness adjustments caused by Attention-Aware Features on your device. If you continue to experience issues with your screen brightness dimming automatically, you may want to consider reaching out to the manufacturer or seeking assistance on forums like Reddit for further troubleshooting.

It’s important to note that the automatic dimming of screen brightness can also be influenced by other factors, such as ambient light sensors or power-saving settings. If disabling Attention-Aware Features does not resolve the issue, you may need to explore other settings on your device to identify the root cause of the problem.

Prevent iPhone Overheating

  • Keep your iPhone out of direct sunlight.
  • Avoid using power-hungry apps for long periods of time.
  • Remove unnecessary apps running in the background.
  • Turn off features like Bluetooth and Wi-Fi when not in use.
  • Update your iPhone’s software regularly.
  • Avoid charging your iPhone in hot environments.
  • Use a protective case that allows heat to dissipate.


Why does my brightness keep going down when auto brightness is off?

Your brightness may keep going down when auto brightness is off because the proximity sensor could be blocked by a case or cover on your screen. To prevent this issue, try deactivating the Adaptive brightness feature in the settings under “Display”.

Why does my iPhone suddenly dim?

Your iPhone suddenly dims because the brightness level may be set to automatically adjust. To prevent this, go to your settings, navigate to accessibility, and tap display to adjust the brightness level to your liking.

Why is my phone screen brightness so low even though it’s on full?

Your phone screen brightness may be low even though it’s on full due to certain apps or themes that can override display settings. Check for any installed apps or themes that might be affecting screen brightness and uninstall or disable them.

Why is my iPhone screen dark but brightness up?

Your iPhone screen may appear dark even though the brightness is up due to an accessibility feature that zooms the entire display. To resolve this issue, you can unzoom your screen or disable the feature in Settings > Accessibility > Zoom.

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