Code

Description

*3370#

Activate Enhanced Full Rate Codec (EFR) - Your 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#

Deactivate 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 "p,w" and "+" symbols).
 

*#147#

(vodafone) this lets you know who called you last.
 

*#1471#

Last call (Only vodofone).
 

*#21#

Allows you to check the number that "All Calls" are diverted to.
 

*#2640#

Displays security code in use.