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You can select the message tone you want to hear when you get a message.
1. Find "Sound"
Slide two fingers downwards starting from the top the screen.
Press the settings icon.
2. Select message tone
Press Notification ringtone.
Press the required message tones to hear them.
Once you've found a message tone you like, press the confirm icon.
3. Return to the home screen
Press the Home key to return to the home screen.