There are three possibilities that may cause the mobile QQ music player to be unable to play music

1. Different formats

The music format in the mobile phone memory card and the music player format Different

If the music in your mobile phone is in WMA format but the player format is MP3

it cannot be played, and vice versa.

You must check the music format master to match, and download music or players with matching formats

2. Viruses

If the mobile phone or memory card is infected with a virus, playback will be affected. , it is recommended to format the memory card

3. Poor contact between the memory card and the phone

You can try shutting down the phone and reinstalling the memory card