2. Check whether the third-party security software is installed on the mobile phone, and see whether the software automatically sets the lock screen to clear the applications running on the mobile phone. Just set the cancel option in the software.
3. Generally, the program will not end automatically after the screen of the mobile phone is locked. If the problem terminates automatically, it is estimated that the mobile phone is equipped with optimization software, or similar mobile phone task management or process management software, which has the function of automatic task termination. In this case, the running program will be terminated when the phone locks the screen, which will also save power for the phone.
4. If you don't want a program to end after the screen is locked, you can directly add the tasks you want to keep to the filter list (automatically ending tasks means closing tasks outside the filter list when the screen is dormant), or simply cancel the automatic ending task, so you don't have to worry about turning off some running tasks when the screen is locked.
Extended data:
Common troubleshooting of mobile phones:
Symptoms: The phone can't play music.
1. Check the settings of the music player to see if access to the network is prohibited.
2. Check the security software restrictions.
3. Change the access point in the network settings.
4. The music player is not compatible.
5. Confirm whether to play online music or downloaded music. To play online, please try to change a different network environment.
6. If the downloaded music can't be played, determine whether the played audio format is supported by the mobile phone, and then replace the own music to see if it can be played normally;
7. Try to replace the third-party music player;
8. If it doesn't work, please back up the important data in the mobile phone and then restore the factory settings of the mobile phone.