If the downloaded songs cannot be displayed in the built-in music player, please refer to the following:

1. It may be that the format of the downloaded songs does not match the format supported by the mobile phone and cannot be recognized. It is recommended to try other formats of music.

2. If you download songs through a third-party music player, try updating the software version.

3. Try restarting the phone.

4. Try downloading songs through other methods.