1. Find "Ringtone & vibrate"
Slide your finger downwards starting from the top of the screen.
Press the settings icon.
Press Sound.
Press Ringtone & vibrate.
2. Select ring tone
Press Ringtone.
Press Add from Music.
Press the required ring tones to hear them.
Once you've found a ring tone you like, press OK.
Press OK.
3. Return to the home screen
Press the Home key to return to the home screen.