Nokia Mobile Secret codes Default security code is 12345 *#7780# : To restore the factory settings of mobile set *#7370# : To format the mobile phone memory *#7328748263373738# : To resets the set default security code *#2640# : To display the mobile security code *#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# : se 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). *#7760# : To display the Production serial number *#bta0# : Use to display Bluetooth MAC address *#9999# : Use to display the mobile software version *#147# : If you are using Vodafone then this code will help you show the last call detail *#4