Settings-sound-ringtone (information ringtone, other notifications)-select from files (or click online ringtone);

file management-music-long press song-more (or three icons in the lower right corner)-is set as ringtone;

any song music playing interface-the left menu key (or three icons in the lower right corner)-is set as ringtone,

all songs list-click the symbol after any song-and select ringtone (or bell icon).

The above steps can help you set your favorite ringtone.

OPPO A57 is a new mid-range machine launched by OPPO, which uses a 5.2-inch screen, built-in 3GB RAM+32GB ROM and supports the expansion of 128GB memory card.