The downloading steps are as follows:

1. Open the Changba app and find the song accompaniment you want to download.

2. Click I want to sing to load the accompaniment. Wait for the accompaniment to be loaded.

3. Open the file management application and click to enter the phone.

4. In the file manager, find and select the hidden folder named .ktv.

5. After entering the .ktv folder, you will see a folder named song. Click to enter the folder.

6. In the song folder, you will see a folder named music. Click to enter the folder.

7. In the music folder, find the accompaniment file you just downloaded.

8. Long press the accompaniment file and choose to export or copy to the location you want to save. You can download the accompaniment file to your local computer.