>>> Go to Settings and choose About Phone
>>> Storage option selected
>>> Select Factory Reset
Just wait for the phone ends the process and when it does we will have the phone as new as the day you had first brought him out of the box.
Charge the battery fully so that it will not interrupt the process .
>>> Press and hold the volume + button and on / off buttons.
>>> Wait on the phone screen menu appear and release both buttons.
>>> Scroll with the volume keys to the System Upgrade and Clear Data option.
>>> Use the Volume keys to scroll to the Start option and select it by pressing the on / off.
Once done and after the phone makes the whole process the phone will return to its initial configuration , as you found it right out of the box first .
The instruction provided is the general steps on how to Hard Reset and Factory Reset.If the instruction will not work, please make a comment and we will immediately find the correct procedure. Thanks.