It will remove all the data ,contacts and apps that you installed
1. First turn off your mobile.
2. Press volume up and down both at same time and press power button while holding volume up and down
3.now i get one menu which says Press volume up for Recovery mode and volume down for Factory Restore just press volume up.
4.OoOps i got a dead android logo just press home button wow i got more options
5. Now simply select wipe data by pressing menu button and it's done
Q mobile A6 Restore Factory Hard Reset Format Phone.So lets start the Q mobile A6 Restore Factory, Q mobile A6 Hard Reset.Turn Off the mobile phone for few mints.Q mobile A6 Remove Pattern Lock.
Restore Hard reset will set your phone in origional factorry settings. It will remove all the data and apps that you installed. Your contacts will be removed and you have to add them again.