This may happen because you failed to download, or the downloaded song format cannot be read by the mobile phone system. I suggest you try downloading again. I suggest you download songs in the corresponding format of your mobile phone. Generally, mobile phones support songs in MP3 format. You can try to download songs in MP3 format, and you can restart your phone after downloading. If it still doesn't work, I suggest you download the I music from your mobile phone. If it still doesn't work, you can refer to the following solution: 1. I suggest you try to restore the settings, and go to the phone settings-General/More Settings-Restore factory settings-Restore all settings (without deleting any data of the phone).

2. You can try to update the system version optimization system: click Settings-General/More Settings-System Upgrade-Check the update immediately, download the upgrade package according to the prompt, and click Check Installation, and the phone will restart and automatically enter the upgrade mode.

If you have any questions, please feel free to consult us. Thank you very much for your support of our vivo. I wish you a happy life!