Hi,
Sorry for the late reply due to the National Day.
Regarding the app volume issue, it’s the system problem, sorry about this.
The factory ever tested the new firmware but it does little help. It may depend on the android board.
If you don’t mind, please just use the SD card or bluetooth to play music.
Regards
Statistics: Posted by Jammy — Fri Oct 07, 2016 10:03 am