Din manualul telefonului
Personalise your phone tones
You can select the best sounds for your phone.
On the start screen, swipe left, and tap settings icon Settings >ringtones+sounds.
Select the type of ringtone or alert you want to change, and select the sound.
Add new ringtones from your PC to your phone
Connect your phone to your PC with a USB cable, and use the file manager of your PC to move the song you want to the ringtone folder in your phone.
To set the song as your ringtone, in the ringtones+sounds view, tap Ringtone, and under Custom, tap the song.