Find "Tones"
Press the Navigation key.
Scroll to Settings and press the Navigation key.
Scroll to Tones and press the Navigation key.
Select message tone
Scroll to Message alert tone and press Navigation key right to select the required message tone or Open Gallery.
If you select Open Gallery:
Press the Navigation key.
Go to the required folder and press the Navigation key.
Highlight the required message tone and wait a moment to hear it.
Press the Navigation key to select the message tone.
Save and exit
Press the Navigation key to save.
Press Disconnect to return to standby mode.