Find "Customize"
Press the Navigation key.
Scroll to Settings and press the Navigation key.
Scroll to User profiles and press the Navigation key.
Highlight the active profile and press Options.
Scroll to Customize and press the Navigation key.
Select message tone
Highlight the field below Message and press the Navigation key.
Highlight the different message tones to listen to them.
Once you've found a message tone you like, press the Navigation key.
Save and exit
Press Options.
Scroll to Save and press the Navigation key.
Press Disconnect to return to standby mode.