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.

*#06# = IME number
*#0000# = version of the software
*#92726089# information abt phone

*#62209526# (*#MAC0WLAN) – Display the MAC address of the WLAN adapter. This is

available only in the newer devices that support WLAN

*#2820# (*#BTA0#) – Display the Bluetooth device address of your phone.