Nokia Java / Symbian Mobile's Secret Codes

To check the Mobile's Software Version
Dial : *#0000#

To enter the Service menu Dial: *#92702689#

Clock Stopping: *#746025625##06#

Display the IMEI No. (GSM standard): *#06#



Display the firmware version and date: *#bta0#

Display the Blue-tooth MAC address ( models with build-in Blue-tooth radio, activate first to show address)
Dial : *#mac0wlan#

Display the WLAN MAC address (models with build-in Wi-fi radio)
Dial : *#opr0logo#

Clear the operator logo ( For 3310 and 3330 only)
Dial : *#pca0#

Activate the GPRS PCCCH support (early GPRS models)
Dial : *#pcd0#

Deactivate the GPRS PCCCH support (early GPRS models)
Dial : *#res0wallet#

Reset the mobile wallet (models with mobile wallet option)
Dial : *#res0#

Soft-format the memory (Symbian models only)
Dial : *#rst0#

Reset to factory defaults, confirmation required (DCT4 or newer)
Dial : *#sim0clock#

Display the SIM clock status (DCT3 only)
Dial : *#ssn0#

Display the manufacturing serial number
(mid-range and premium, non-Symbian models)
Dial : *#war0anty# (*#92702689#)

Display the manufacturing and repair info(no exit on DCT3)
Dial : *efr0#

Enable EFR encoding (pre-2003 models)
Dial : #efr0#

Disable EFR encoding (pre-2003 models)
Dial : *hra0#

Enable HR encoding (pre-2003 models)
Dial : #hra0#

Disable HR encoding (pre-2003 models)
Dial : #pw+1234567890+n#
Display the SIM lock status:
(pre-2003 models)
n = 1: provider lock
n = 2: network lock
n = 3: country lock
n = 4: SIM lock
[NOTE: Please Use it Carefully]

thats cool.. thanks for these useful codes