Turn off your S2 PRO
Press and hold Volume Up and Power key for 6 to 7 seconds,
Qmobile Noir S2 pro with Android splash Screen will appear.
After Splash Screen a set of options will appear.
Press Home Key,
For Scrolling press - or Down Volume key and select "Data Factory -Reset" option from the list
Press Menu Key ,,The left most option,,
Another Screen with options appears, scroll down to select- Delete all User Data,
reboot your mobile...
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website,
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Please watch: "LG G3 Hard Reset? by ?TOPinTOWN Tech?"
https://www.youtube.com/watch?v=Nn_c0Awt4bc
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