Mobile Tips & Tricks Nokia Mobile Tricks
*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, 1st Line : Software Version, 2nd Line : Software Release Date, 3rd 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) #pw+1234567890+2# Network Lock Status. (use the "*" button to obtain the "p,w" and "+" symbols) #pw+1234567890+3# Country Lock Status. (use the "*" button to obtain the ...