ALL NOKIA SECRET CODES:
1. *#06# FOR CHECKING YOUR PHONE IMEI (INTERNATIONAL MOBILE EQUIPMENT IDENTITY)
2. *#7780# TO RESET FACTORY SETTINGS.
3. *#67705646# THIS WILL CLEAR THE LCD DISPLAY (OPERATOR LOGO).
4. *#0000# TO VIEW SOFTWARE VERSION.
5. *#2820# TO VIEW BLUETOOTH ADDRESS.
6. *#746025625# FOR SIM LOCK ALLOWED STATUS.
7. *#62209526# DISPLAY THE MAC ADDRESS OF THE WLAN ADAPTER, THIS CODE IS ONLY AVAILABLE ON NEWER DEVICES THAT SUPPORTS WLAN.
8. #pw+1234567890+1# SHOW IF SIM HAVE RESTRICTIONS.
9. *#92702689# TAKES YOU TO A SECRET MENU WHERE YOU MAY FIND SOME OF THE INFORMATIONS BELOW;
a. DISPLAYS SERIAL NUMBER.
b. DISPLAYS THE MONTH AND YEAR OF MANUFACTURE.
c. DISPLAYS IF ANY, DATE WHEN PHONE WAS PURCHASED.
d. DISPLAYS THE DATE OF LAST REPAIR IF FOUND (0000)
e. SHOWS LIFE TIMER OF PHONE (TIME PASSES SINCE LAST START).
10. *#3370# ENHANCE FULL RATE CODEC [EFR] ACTIVATION, THIS HELP TO INCREASE SIGNAL STRENGTH FOR BETTER SIGNAL STRENGTH FOR BETTER SIGNAL RECEPTIONS. IT ALSO HELP IF YOU WANT TO USE GPRS AND SERVICES IS NOT RESPONDING OR TOO SLOW. NOTE: THAT THIS SOMETIMES DRAINS YOUR BATTERY FASTER.
RE-PRESS *#3370# TO DEACTIVATE THIS CODEC [EFR] AND THE PHONE WILL AUTOMATICALLY RESTART, THEREFORE INCREASING YOUR BATTERY LIFE UP TO 30 TO 40% BECAUSE PHONE HAS REDUCED RECEIVING LESS SIGNAL FROM NETWORK.
11. *#4720# HALF RATE CODEC ACTIVATION.
12. *#4720# HALF RATE CODEC DEACTIVATION.
13. *#7370925538# IF YOU FORGET YOUR PHONE WALLET CODE FOR NOKIA S60 PHONES, USE THIS CODE TO RESET, PLEASE KNOW THAT YOUR DATA IN THE WALLET WILL BE ERASED. THE PHONE WILL ASK YOU THE LOCK CODE, DEFAULT CODE IS>> 12345
13. *#7328748263373738#
14. UNLOCK SERVICE PROVIDER, INSERT SIM, TURN PHONE ON AND PRESS VOL-UP FOR ABOUT 3 SECONDS, SHOULD SAY PIN COED, PRESS C, THEN PRESS * MESSAGE SHOULD FLASH, PRESS * AGAIN AND 04 *pin*pin**pin#
GOOD LUCK FRIENDS.
