Follow the steps mentioned below :
1. Make sure your phone is fully charged.
2. Backup your contacts list and personal files to MMC memory card (if possible).
3. Switch off your N73 phone.
4. Press and hold these three keys together:
* The green dial key,
* The star key (*)
* The three key (3)
5. Press the power on/off for 1 minute to switch on the N73 phone. Do not let go of the three keys until you see the “formatting” screen displayed
6. Wait a few minutes until the format is complete. Your N73 will now be formatted and restored to its original factory settings.
Answered by Nilesh
at
10:38 AM on March 12, 2009