Nokia Secret Codes

*#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