According to your description, if the music played when the phone is locked gets stuck/stops, I suggest you:

1. Turn off the phone and restart it.

2. Check whether the third-party player software is used. If so, please switch to your own music player and try to play it.

3. Check whether the phone has downloaded the latest third-party software. It may be that the software restricts the background running program, please uninstall and observe.

4. Please check whether the mobile phone has firmware/system push notification. If yes, please upgrade your phone to the latest version. View Mode: Settings-(General)-About Equipment-System Update.

5. If it is invalid, it is recommended to back up the data of the mobile phone (phone book, SMS information, multimedia materials, etc.). ) and restore the phone to the factory settings.

If the problem still exists after the operation, it is recommended that you bring the purchase invoice, maintenance card and mobile phone to the local Samsung service center, and the engineer will test the mobile phone for you. Please click the following link to find out the specific location of Samsung Service Center:.

Samsung knows to provide you with high-quality solutions and answer your questions attentively, hoping to get your satisfactory evaluation.