First Backup Your All Impotent Data Like Contact, Messages, Photos, Videos etc. For Hard Reset Battery Charge 50% Up. if your call phone battery is empty don't try hard reset/ factory reset your device.it's risk for device. device will be dead if battery is empty.
1. First Turn Off Your Device Completely. remove battery and reinsert.
2. After That Press And Hold Home + Volume UP + Power Key To Turn On Your Device Until Show Logo On Screen.
3. When Show Logo On Screen Release all Buttons.
4. After Few Second Show android Recover Menu On Screen Use Volume Down Key To Select This Option "wipe data/factory reset" Press Power Key To Confirm.
5. Than Select This Option "Yes-- delete all user data" Use volume key to Scroll And Power Key To Confirm.
6. At This Time you Are last Step Select This Option "reboot system now" Again press Power Key.
Done.
Don't Forget Say Thanks.
1. First Turn Off Your Device Completely. remove battery and reinsert.
2. After That Press And Hold Home + Volume UP + Power Key To Turn On Your Device Until Show Logo On Screen.
3. When Show Logo On Screen Release all Buttons.
4. After Few Second Show android Recover Menu On Screen Use Volume Down Key To Select This Option "wipe data/factory reset" Press Power Key To Confirm.
5. Than Select This Option "Yes-- delete all user data" Use volume key to Scroll And Power Key To Confirm.
6. At This Time you Are last Step Select This Option "reboot system now" Again press Power Key.
Done.
Don't Forget Say Thanks.