Restoring your Nokia phone

Restoring your Nokia phone: "There are two methods allowing you to reset your phone to a more unwavering state.
Normal Reset

Using the *#7780# sequence.

It will restore ini files from ROM keeping all your data (themes, 3rd party applications, video, photos, and music files)
Deep Reset

Using the *#7370# sequence.

Completely format phone memory. Default files are cleaned up and rewritten.

Note that data found on memory card will not be altered"