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 VIVO X21s. Find out the way to remove all personal data, customized settings and installed apps from VIVO X21s.
As a result your Android 8.1 Oreo will run faster, you will be able to use the entire 128000 MB storage and Li-Polymer 3330.0 mAh battery will work longer. Let's restore defaults in VIVO X21s and enjoy using your phone as it comes from the manufacturer.
VIVO Y83 HARD RESET NEW METHOD 2018 - video