This trick will work only when after your phone connect your PC via Usb cable. 1.Downoad [ANT] Simple Ant Simple.zip
2. If you have Nokia PC Suite running, be sure to close it by exiting from the task-bar icon.
3.Extract [ANT] Simple ] and run Simple.exe located in the folder
4.Connect the phone via USB(should be original Nokia Data cable) to the computer by selecting Pc suit/Ovi suit when prompt a message in your pone.
5.After you've connected your phone, Click "Read Info"
6. On the MAIN tab, click on GET. Your phone IMEI number and model should be displayed onthe bottom panel as shown below
7. Nowclick on the SERVICE tab and click on GET button under USER CODE
8. Your security code should now be displayed on the right side of the application window. Thanks For visiting Fixya