1. Click on the Settings icon
2. In the middle of the Settings menu select “Sounds”
3. This will put you in your Sounds Menu
4. Click “Ringtone” to select a new ringtone for your current device.
5. Click “New Text Message” to select a new tone for Messages.
In this Sounds menu you also can turn on and off different alerts, and also change the volume of your alerts.:D