Nokia Secret Codes

• *#06# Display IMEI number.
• *#0000# Display firmware version.
• *#7370# Restore the phone to factory default settings. You will loose all your settings, data, etc. This is used to reset the phone to the same state when it was brand new.
• *#7780# Soft reformat the phone. Not sure how different this is from*#7370#, but supposedly this one only resets phone settings (such as themes and profiles) without loosing data (contacts, calendar, and notes). Always backup your phone first anyway!
• *#92702689# Shows the “Life timer” on my N73 and N95 8GB, whatever that means. On other phones it is apparently supposed to show warranty information such as serial number, manufacturing date, purchase date, date of last repair and transfer user data.
• *#2820# Show Bluetooth MAC address.
• *#62209526# Show Wireless LAN MAC address