I have listed all Nokia secret codes. On the main screen type:*#06# - is used to check the IMEI (International Mobile Equipment Identity).*#7780# - resets to factory settings.*#0000# - shows the software version of your mobile phone.*#9999# - Phones software version if *#0000# does not work.*#67705646# - clears the LCD display(operator logo).*#147# - This lets you know who called you last (Only vodofone).*#1471# - Last call (Only vodofone).#pw+1234567890+1#...