By using these code we can do some interesting things like reset phone, know manufacturing date or much more. These codes are loopholes by Nokia to help its users in different situation. Sometimes, we accidentally forget our phone password or our device malfunction due to some bug. We can easily restore our phone to firmware and reset its password to default settings.
We can also surprise our friends with Wonderful things by using these code. Be the master of Nokia mobiles. Nowadays many mobile version provide little hidden codes which help us when something goes wrong or our device got stuck. We already listed those codes like for android and ios devices.
In the same their are codes for Nokia or Microsoft devices also. In this article we are going to explain some best Nokia secret codes. These code varies from Nokia phone model to model.
| Secret Code | Function | 
| *#06# | Used for checking IMEI (International Mobile   Equipment Identity). | 
| *#7780# | Reset to factory settings. | 
| *#67705646# | This will clear the LCD display | 
| *#0000# | Used to view software version. | 
| *#2820# | Bluetooth device address. | 
| #pw+1234567890+1# | Shows if SIM has restrictions. | 
| *#92702689# | Takes you to a secret menu where you may find some of the   information below: Displays Serial Number. Displays the Month and Year of   Manufacture. Displays (if there) the date where   the phone was purchased (MMYY). Displays the date of the last   repair – if found (0000). Shows life timer of phone (time   passes since last start) | 
| *#4720# | Half Rate   Codec activation. | 
| *#4720* | Half Rate   Codec deactivation. The phone will automatically restart. | 
| #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   the mobile wallet (models with mobile wallet). | 
| *#res0wallet# | Reset   to factory defaults, confirmation required (DCT4 or newer) | 
| *#sim0clock# | Reset   SIM clock | 
| *#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) | 
| *#7370# | Restore    the phone to factory default settings. You will loose all your  settings,   data, etc. This is used to reset the phone to the same state  when it was   brand new. | 
| #*#2820# | Show   Bluetooth MAC address. | 
| #*#62209526# | Show   Wireless LAN MAC address | 
| *3370# | Enhanced   Full Rate Codec (EFR) activation. It will automatically restart. | 
| #3370# | Enhanced   Full Rate Codec (EFR) deactivation. It will automatically restart. | 
| *4370# | Half   Rate Codec activation. It will automatically restart | 
| #4370# | Half   Rate Codec deactivation. It will automatically restart | 
| *#147# | (Vodafone)   this lets you know who called you last *#1471# Last call (Only Vodafone) | 
| *#21# | Allows   you to check the number that “All Calls” are diverted To | 
| *#2640# | Displays   security code in US | 
| *#30# | Lets   you see the private number | 
| *#43# | Allows   you to check the “Call Waiting” status of your phone. | 
| *#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 | 
| *#67705646# | Removes   operator logo on 3310 & 3330 | 
| *#73# | Reset   phone timers and game scores | 
| *#746025625# | Displays    the SIM Clock status, if your phone supports this power saving  feature “SIM   Clock Stop Allowed”, it means you will get he best  standby time possible | 
| *#7760# | Manufactures   code. | 
| *#7780# | Restore   factory settings. | 
| *#8110# | Software   version for the Nokia 8110 | 
IMPORTANT NOTE:
The use of this codes is completely at owners risk, and should be handled with care to avoid phone damage.
The use of this codes is completely at owners risk, and should be handled with care to avoid phone damage.

 
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