All mobile hard reset and flash file solution here
micromax,karbonn,samsung,etc Torn off your smart phone and reinsert battery

Prees and hold Volume up and Power Buttons
you see in mobile screen Android logo then
Press Home Buttons
Now You See system recovery mode
Now Select Wipe Data Factory Reset using Volume key
Next Select Yes-Delete All User Data
Now select Reboot system Now www.gsmrk.com