1. From the home screen, swipe down from the Notification bar.
   
2. Tap the Settings icon.
   
3. Under the 'Sound' tab, tap Ringtone.
   
4. Select the desired ringtone, then tap OK.
   
5. To choose a song for your ringtone, tap the Add icon.
   
6. Select the desired option, then tap OK.
   Note: For this demonstration, choose 'Audio'.
   
7. Tap the desired song.