gkellum, thank you for your reply. And of course it is as easy as I would have expected it. In fact, there was something wrong with the cable, that’s all. I apologize for inconvenience.
I would prefer to engage Bluetooth instead of a cable, but I found H9 control not stable enough by working wireless. It gets weird as soon as I switch to some other app and back again. With cable connection it seems to work better.
But I’m OK now and I enjoy this piece of tech