how to hard reset nokia phone

*#7780# FOR SOFT-RESET- does not delete user info such as contacts, sms, etc
How to do it:
- at Standby Screen type-in => *#7780# It will ask for “Restore all phone settings-phone’ll restart….” Then it asks for security code enter factory default => 12345
*#7370# FOR HARD-RESET- deletes all user info How to do it:
 - at Standby Screen type-in => *#7370# It will ask for “Restore all phone settings-phone’ll restart….”
Then it asks for security code enter factory default => 12345 FOR FLASHING
- TOTAL RESTORE: (Do this if your phone does not boot up) - you can say this one gives you the "New" OS, and of course deletes all user info
 How to do it:
 1) Remove the battery, and then wait for about 20 min or so before putting it back
 2) Press and hold these three keys together -Green dial key, Star key[*], Three key [3]
 3) switch ON the phone.
4) Do not let go the three keys until you see the WELCOME screen displayed and just let it complete the boot process