How can I set an MP3 as a ringtone
Use the following steps to set an MP3 as the phone ringtone after downloading it to your device:
1) Touch the “Settings” icon from the Home screen or under the main menu.
3) Touch “Ringtone & vibrate”.
4) Touch “SIM1/SIM2 ringtone” (only for Dual SIM version).
6) Choose an MP3 you like and touch “DONE”.