ucokmonalisagsm blogspot

http://www.resetnokia.com
http://blog.forum-handphone.org/tag/request/page/6

Code to reset the Nokia mobile model mini N97

1.- Basic Reset or Soft Reset

This option restores the .ini files from the ROM.
Does not erase data (photos, videos, documents) nor applications from
a third party. Key Code *#7780# (click this combination of keys on the
keyboard in the mobile)

2.- Total Reset or Hard Reset

This option restores the original operating system from the ROM.
Formats the C: partition and deletes all data including the memory
card. Key Code *#7370# (click this combination of keys on the keyboard
in the mobile)
or

Turn the device off
Press and hold Answer + Reject + Camera keys
Turn on the devide by pressing the ON button.
Wait until the Nokia logo appear.
Important: To proceed to reset, the battery must be full and the
mobile device connected to the charger. If during the course of reset,
the mobile stop receiving  electricity it can ruin the internal flash
memory of the mobile device and stop function.
http://nokiabb5flashfile.blogspot.com/2011/02/n81-8gb-rm-179.html