It will remove all the data ,contacts and apps that you installed
1.Power off your phone completely
2.Press and hold volume up + home button + power button
3.Release buttons when Samsung logo appear
4.Choose with volume buttons "wipe data/factory reset" and select it with power button
5.Choose "yes delete all data" with volume buttons and select it with power button
7.Wait until the phone restarts
Samsung Glaxy Grand I9082 Restore Factory Hard Reset Format Phone.So lets start the Samsung Glaxy Grand I9082 Restore Factory, Samsung Glaxy Grand I9082 Hard Reset.Turn Off the mobile phone for few mints.Samsung Glaxy Grand I9082 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.