Nokia N96 Codes :

*#06# : To check NOKIA IMEI number (International Mobile Equipment Identity)
*#0000# : NOKIA Firmware version and date, Phone Model and Operator Variant
*#92702689# : Life timer (W A R 0 A N T Y) - The amount of time your phone has spent sending and receiving calls.
*#62209526# : Wireless MAC Address (M A C _ W L A N)
*#2820# : Bluetooth MAC address (B T A 0?)
*#7370# : NOKIA Format phone (Soft Reset)
*#7780# : NOKIA Factory Reset (Hard Reset)