System version: EMUI 10.0.0.

Operating software: Huawei Music 6. 1.3.

1, first find the music of the mobile phone, the music software that comes with this machine. As shown in the figure below.

2. Find a song and select three points in the click box. As shown in the figure below.

3. Then, in the open options, select ringtone production. As shown in the figure below.

4. Select the clip you want to edit, click Save in the lower right corner, and this piece of music will be saved to the location displayed on the screen. As shown in the figure below.