Nokia Codes

Some Codes here... May work... May not wok... Nokia Code function *3370 # This Nokia code activates Enhanced Full Rate Codec ( EFR) - Your Nokia cell phone uses the best sound quality but talk time is reduced my approx. 5 % #3370 # Deactivate Enhanced Full Rate Codec (EFR) . *#4720 # Activate Half Rate Codec - Your phone uses a lower quality sound but you should gain approx 30 % more Talk Time. *#4720 # With this Nokia code you can deactivate the Half Rate Codec. *#0000 # Displays your phones software version, 1 st Line : Software Version, 2 nd Line : Software Release Date, 3 rd Line : Compression Type . *#9999 # Phones software version if *#0000 # does not work. *#06 # For checking the International Mobile Equipment Identity (IMEI Number) . #pw+ 1234567890+1 # Provider Lock Status. (use the "*" button to obtain the "p,w" and "+" symbols).