concerns under iOS 6 on your iPhone 5, 4S, 4 or an iPad? Fortunately there’s an easy fix to the ambient light sensor readings that got quite a bit of an overhaul in iOS 6, including the Lock screen auto-brightness and better memory management, causing confusion to many iDevice users.
So for those, whose auto-brightness isn't working under iOS 6, we’ve decided to share a quick tip on how to get it up and working again.
The first step is to go into a weakly lit or a dark room and launch the Settings app from the Home screen of your iPhone, iPad, or iPod touch. Navigate to Brightness & Wallpaper and turn the toggle to Off. Once it’s switched off, now adjust the slider to the brightness level that you’d like your iDevice screen to shine with in the given environment – for example if you enter a wholly dark room, you’re likely to put the slider all the way to low, or at least closer to all the way down.
Once you’ve chosen the desired brightness level, turn the auto-brightness setting on again and flip on a light switch. The brightness slider should now start moving upwards in order to adjust to the new light environment hitting the sensor – providing that the slider starts moving on its own, this means the tip worked, you’ve successfully re-calibrated the sensor and will never ever experience the same issue again! For your convenience, we've attached the video guiding you through the process below: