Sound assistant app feature Control music with volume key (when screen off)

[kpsince1999]

some ( one ui core ) samsung phone not supporting good lock app

Family > Sound assistant

Toggle on control music with volume keys

Two more option available for volume key costimise

Then enjoy your music controlling with Volume key 🕺🎵💃

After screen off this feature work

1st you need to install good lock app 

Then Sound assistant

Good lock 

Link 

https://apps.samsung.com/appquery/appDetail.as?appId=com.samsung.android.goodlock

Sound assistant 

Link

https://apps.samsung.com/appquery/appDetail.as?appId=com.samsung.android.soundassistant

[RvShankar]

Not supported in core devices

[kpsince1999]

Yes i mentioned that