Unable to control the phone to play music

1. The watch and mobile phone are not connected normally
2. The music control switch in app is not turned on: device - Application Management - music control
3. The music player is not turned on to play music
4. Not paired with the system Bluetooth: disconnect the Bluetooth and reconnect. After the pairing prompt pops up, click "pairing"
5. If the Bluetooth connection of the system is abnormal, you can turn off the Bluetooth and turn it on again