Find "Change barring passw."
Press the Navigation key.
Scroll to Settings and press the Navigation key.
Scroll to Security and press the Navigation key.
Scroll to Access codes and press the Navigation key.
Scroll to Change barring passw. and press the Navigation key.
Change barring password
Key in your current barring password (default is 0000) and press the Navigation key.
Key in a new call barring password and press the Navigation key.
Key in the new barring password again and press the Navigation key.
Exit
Press Disconnect to return to standby mode.