Time: 3 minutes
Version: Android 1.6 (Donut) and newer
In order to enable the auto brightness setting on your Android phone or tablet, you will need to first make sure that you have Android 1.6 or newer. Secondly, this feature/setting will only work with devices that have a light sensor built into them. This light sensor is what allows the Android OS to understand the environment that you are in and therefor increase or decrease the display brightness based on that. Without further explanation, you can navigate using the path below to arrive at the option to enable auto brightness:
Menu -> Settings -> Display -> Brightness
Once you get to the menu above, you will notice there is a progress bar that allows you to change your current brightness. Just below this part, there should be a check-box that says “Automatic brightness.” You simply have to check this option and this feature will now be turned on.
Also note that if you have the power control widget somewhere on your Android home screen you will be able to tap the button for brightness to enable this feature. It should be displayed as a small sun with an “A” in the middle when it is set to automatic brightness. There are also a few third-party applications that can either replicate this feature or perform some form of pseudo auto-brightness. Again however, you will not be able to truly use this feature unless you are using a handset that is sporting some form of light sensor.