Bluesound has a web site with a support section. The web site also has a community forum where you can post questions and their tech people monitor it.
You can also initiate a support request through the BluOS app.
Bluesound Node help
I purchased a nice current model node here a while back with HDMI input on it. I have Sony TV only two years old with ARC and also eARC on it for the HDMI. I can not figure it out, wont work when I use it. I get good sound with another DAC using toslink from the Sony but nothing with the Node. In fact, I am struggling a lot with the Node. I can not get it to do what it does best and work flawlessly with my phone. I installed the app but it does not always sync or turn on at all. I can only use the bluetooth to get it to work. Is there a website or manual or help out there. I may have to just sell it. Is nice unit and has potential I just know it. Can someone help?