Hard Reset:
- Press and hold Volume UP + Home + Power Key Until Samsung logo Appear
- Now you see android recovery logo
- Now select Wipe data/factory reset and press home key to confirm
- Now select Yes -- Delete all user data and press home key to confirm
- Now reboot device
- hard reset done
One Another Hard Reset Solution:
- Download tool and file and Drivers
- Put Phone in Download Mode
- Press and hold Volume Down + Home + Power key
- now press Volume Up for enter Download Mode
- Connect phone to PC install Drivers and open tool
- Select CSC file and Start flashing
- After write CSC file phone will Reboot automatic
- hard reset done