Where are the SMS ringtones and on-off music of mobile phones?

mobile phone

But all my mobile phones are similar. You found it in the settings.

ring

Selection of settings

Item, and then find the relevant.

telephone ring

Call ringtone, click the ringtone that comes with you.

hardworking

There should be an item about the choice of other ringtones (specifically, which different mobile phones should have different names), and then click in to choose.

Just select the music you downloaded to your mobile phone (as long as you download music, this should be the default).