Some secret tips & tricks & codes for symbian based nokia mobile phones.

#06#
Display the IMEI (GSM standard)

*#0000#
Display the firmware version and date

*#bta0#
Display the Bluetooth MAC address (models with build-in Bluetooth radio, activate first to show address)

*#mac0wlan#
Display the WLAN MAC address (models with build-in Wi-fi radio)

*#opr0logo#
Clear the operator logo (3310 and 3330 only)

*#pca0#
Activate the GPRS PCCCH support (early GPRS models)

*#pcd0#
Deactivate the GPRS PCCCH support (early GPRS models)

*#res0wallet#
Reset the mobile wallet (models with mobile wallet)

*#res0#
Soft-format the memory (Symbian models only)

*#rst0#
Reset to factory defaults, confirmation required (DCT4 or newer)