The Hard Reset is also commonly known as factory reset. This tutorial will show you the easiest way to perform a factory reset operation in IRBIS TX21 7.0". Find out the way to remove all personal data, customized settings and installed apps from IRBIS TX21 7.0".
As a result your Android 4.4 KitKat will run faster, you will be able to use the entire 4000 MB storage and Li-Polymer 2500.0 mAh battery will work longer. Let's restore defaults in IRBIS TX21 7.0" and enjoy using your phone as it comes from the manufacturer.