Samsung Galaxy Note N800 hard reset:
1. Switch OFF your mobile.
2. Press and hold Volume UP + Power + Home key Until Samsung menu Appear.
3. Now you see android recovery menu.
4. Now select Wipe data/factory reset and press power key to confirm.
5. Now select Yes — Delete all user data and press power key to confirm.
6. Now reboot device.
7. hard reset done.
8. Mobile switch ON itself