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You can select the message tone you want to hear when you get a message.
1. Find "ringtones+sounds"
Slide your finger left on the display.
2. Choose message tone
Press the field below "New text or IM".
Press the play icon next to the required message tones to listen to them.
Once you've found a message tone you like, press the required message tone.
3. Return to the home screen
Press the Home key to return to the home screen.