Do you want to ask "How to play the previous song on Huawei's third-party music lock screen"? The method of setting the lock screen to play the previous song on this phone is as follows:

1. Open the third-party music APP and click Settings.

2. Find the lock screen lyrics in the settings.

3. Check the lock screen lyrics.

4. Find the desktop widget of the third-party music software you are using in the desktop widget and drag it to the desktop.