It looks like you're new here. If you want to get involved, click one of these buttons!
I'd share something interesting with the Grom community.
I recently had problems with usb audio streaming from my Samsung Galaxy S4 with
stock firmware 5.0.1 to my Grom USB3 unit. The strange fact was
that USB audio streaming from the Galaxy S3 of my daughter and the Galaxy S5
Neo of my wife did work... Hence, I assumed it was caused by the stock 5.0.1
firmware. First I rooted my phone and tried to fix the issue in the
audio_policy.conf file on my phone, but without any success. So I decided to flash an
android 6.0.1 custom rom (resurrection remix 5.7.4) on my phone, and yes this
restored USB audio streaming form my S4! The volume was low with USB debugging
turned off, but the volume was perfect with USB debugging turned on. Perfect!
Now I can charge my phone and stream the audio simultaneously, without any
annoying button pushing / connection searching with Bluetooth. The sound is
perfect over the USB cable. I hope this information is also useful to some of you.
The only annoying thing I am left with now is a stupid pop-up that appears on
my phone when I plug-in the USB cable of the Grom unit (must be triggered by
the Grom unit itself, as it directs me to a link to the Grom website). I did
not figure out yet how to turn this off. Anyone did?