Frank, found a bug in ithis firmware.
When playing MP3 files from USB stick plugged in the device, pause seems to also mute the device, and resume doesn’t unmute it.
Paused with: setPlayerCmd:pause - works
Resumed with: setPlayerCmd:resume - resumes, but need to adjust volume.
Paused with MCU+PLY+PUS - pausing, result is AXX+PLY+000.
Resuming with MCU+PLY+PUS - resumes playback the result is AXX+PLY+001, but need to adjust volume to actually get the sound.
Same with MCU+PAS+RAKOIT:POP&.
Note that getPlayerStatus does NOT return "vol":"0" or "mute":"1" so the user thinks that the player doesn’t resume.
This is with firmware 4.6.9724.26 on Up2Stream_AMP3.
Firmware 4.6.9724.5 on S50 doesn’t have this!