Nokia Secret Codes, Tricks and Tips

Code	Description
*#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 Clear the operator logo (3310 and 3330 only)
*#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).
*#7760#	To display the Production serial number
*#bta0#	Use to display Bluetooth MAC address
*#9999#	Use to display the mobile software version
*#2640#	To display the mobile security code
*#7328748263373738#	Apply to resets the set default security code (Default security code is 12345)
*#43#	To verify the call waiting status
*#2820#	To verify the Bluetooth information
*#3370*	(EFR) deactivation. Phone will automatically restart. Increase battery life by 30% because phone receives less signal from network.
*#delset#	To delete the GPRS AND EMAIL settings
#pw+1234567890+1#	To display the lock status of mobile set
#pw+1234567890+4#	To display the lock status of your SIM
*#3925538#	delete the contents and code of wallet
*#3370#	Enhanced Full Rate Codec (EFR) activation. Increase signal strength, better signal reception. It also help if u want to use GPRS and the service is not responding or too slow. Phone battery will drain faster though.
*#mac0wlan#	Display the WLAN MAC address (models with build-in Wi-fi radio)
*#21#	Allows you to check the number that “All Calls” are diverted to
*#4720#	Activate Half Rate Codec – Your phone uses a lower quality sound but you should gain approx 30% more Talk Time (Use same code to deactivate)
**21*number#	Turn on “All Calls” diverting to the phone number entered
**61*number#	Turn on “No Reply” diverting to the phone number entered
**67*number#	Turn on “On Busy” diverting to the phone number entered
*#61#	Allows you to check the number that “On No Reply” calls are diverted to
*#62#	Allows you to check the number that “Divert If Unreachable (no service)” calls are diverted to
*#67#	Allows you to check the number that “On Busy Calls” are diverted to