How to display the hidden settings of Nokia mobiles?

How to display the hidden settings of Nokia mobiles?
Today tip is about the secret codes of nokia mobile phones and will work on most of the latest nokia mobile sets.  You can display the hidden information of mobile sets and troubleshoot the routine problems using these codes.
Follow the list of latest nokia codes list:

Code                                       Action 
*#7780#                               To restore the factory settings of mobile set
*#3283#                               To verify the set Manufacturing date
*#746025625#                   To stop the sim clock
*#67705646#                      Use to delete the operator logo
*#73#                                    Use to reset game scores and phone timers
*#0000#                               Use to display the mobile software version
*#06#                                    To display the IMEI Number of the mobile
*#92702689#                      To display the mobile warranty related settings (Serial no, Made,
                                                Purchasing  date, Repaired date, Life time).