How to reset (reformat) a Nokia Mobile Phone- FULL FORMAT

It worked on All nokia series 60 phones

Nokia-N-gage,Nokia N-gage Qd, Nokia 3650,Nokia 3660,Nokia 6600,Nokia 6620,
Nokia 3230,Nokia 6260,Nokia 6670,Nokia 7610,Nokia 6630,Nokia 6680,Nokia 6681,
Nokia N70,Nokia N90,Nokia 3250


It may happens that a program corrupts the C: drive of your phone. In such case, some data can be lost of course but, more annoying, some applications may not work or work only partially,...

On a Series 60 based phone, two key sequences will allow to restore your phone to a cleaner state:

Normal Reset (*#7780#) : Restores ini files from rom but preserves user data (photos, 3rd party apps etc)

Deep Reset (*#7370#) : This reformats completely the C: drive. All applications and files stored on this drive will be lost and clean default files will be rewritten.

In both case, the phone will ask you a confirmation and you will have to enter a security code (12345 by default).

Files and applications stored on E: drive are not be affected by these sequences.



Useful helps : Full phone formatting a 6600! Here to let everybody how to perform a Full phone formatting on a 6600!

If you encounter situation like below on your 6600 :

1.Blank screen phone unable to reboot.

2. Phone only able to boot-up to "Nokia" word screen.

3. Install some program but not able to uninstall it after that.

4. Unable to delete unwanted files on C drive.

Do a Full phone formatting on your 6600! as steps below,

1.Make sure you have at least 3/4 charge of battery power left.

2. Backup your contacts list and personal files to MMC memory card.

3. Switch-off your 6600 phone.

4. Press and hold 3 keys; Green dial key, * Star key, no. 3 key on keypad and then press the power on/off to swtich on the 6600 phone. Remember, do not let go the 3 press and hold keys until you see a formatting word screen show!

5. After a few minutes when the Full phone formatting completed, your 6600 will back to original system and factory settting