Nokia Secret Codes
Here's a list of known codes on Nokia mobile phones. This list does not include codes that make request to the network. To use these codes, just dial them like normal numbers.
| Code | Description |
| *#06# | Display the IMEI (GSM standard) |
| *#0000# | Display the firmware version and date (with variant info on S40 second edition or newer) |
| *#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) |
| *#sim0clock# | Display the SIM clock status (DCT3 only) |
| *#ssn0# | Display the manufacturing serial number (mid-range and premium, non-Symbian models, and those devired from them) |
| *#war0anty# | Display the manufacturing and repair info (no exit on DCT3) or total talk time on Symbian models |
| *efr0# | Enable EFR encoding (pre-2003 models) |
| #efr0# | Disable EFR encoding (pre-2003 models) |
| *hra0# | Enable HR encoding (pre-2003 models) |
| #hra0# | Disable HR encoding (pre-2003 models) |
| #pw+1234567890+n# | Display the SIM lock status: (pre-2003 models) |
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