Set a Ringtone
To set the music file as a ringtone, from the Home screen, touch Menu > Settings > My device > Sound . Touch Ringtones, and then touch Add at the bottom of the screen. Double-touch Sound picker, and locate the music file you wish to use. Touch Done to set the ringtone.
Assign a Personal Ringtone
To assign a personal ringtone to a contact on your mobile device, open the desired contact and touch Default under Ringtone. You can select one of the preloaded ringtones by touching it in the list, or add a personal ringtone from the sounds stored on your device by touching Add. Quickly double-touch Sound picker, and locate the music file you wish to use. Touch Done.
Note: Touch the filename to preview the music file, and touch it again to pause.
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