Method 1: Using Quick Settings (Android 10 and later):

1. Swipe Down for Quick Settings:

   • Unlock your Android device and swipe down from the top of the screen to access the Quick Settings panel.

2. Find Brightness Slider:

   • Look for the brightness slider among the quick settings icons. It may be represented by a sun icon or labeled “Brightness.”

3. Access Brightness Settings:

   • Tap and hold on the brightness slider or the brightness icon to access additional brightness settings.

4. Toggle Adaptive Brightness:

   • You’ll likely see an option labeled “Adaptive brightness” or “Auto brightness.” Toggle the switch next to it to enable or disable adaptive brightness.
   • If the switch is on (colored or highlighted), adaptive brightness is enabled. If it’s off (grayed out), adaptive brightness is disabled.

Method 2: Using Android Settings:

1. Open Settings:

   • Unlock your Android device and go to the home screen.
   • Find and tap on the “Settings” app. It usually looks like a gear icon.

2. Access Display Settings:

   • In the Settings menu, scroll down and look for the “Display,” “Display & brightness,” or “Display & sound” option. Tap on it to proceed.

3. Find Adaptive Brightness:

   • Look for an option labeled “Adaptive brightness,” “Auto brightness,” or “Brightness level.” Tap on it to access brightness settings.

4. Toggle Adaptive Brightness:

   • You’ll see a toggle switch to enable or disable adaptive brightness. Toggle the switch to turn adaptive brightness on or off.
   • If the switch is on (colored or highlighted), adaptive brightness is enabled. If it’s off (grayed out), adaptive brightness is disabled.

Additional Tips:

• Optimize Battery Life: Adaptive brightness can help optimize battery life by adjusting the screen brightness based on ambient lighting conditions.
• Adjust Brightness Manually: If you prefer to control brightness manually, you can disable adaptive brightness and adjust the brightness level using the brightness slider in the Quick Settings panel or the Display settings.

By following these steps, you can easily enable or disable adaptive brightness on your Android device, allowing you to customize your screen brightness preferences according to your needs.