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You can select the message tone you want to hear when you get a message.
Press the message icon.
Press the menu icon.
Select message tone
Press Notification tone.
Press the different message tones to listen to them.
Once you've found a message tone you like, press DONE.
Turn on notifications
Press Notifications until the function is turned on.
Return to the home screen
Press the home icon to return to the home screen.