Hello,
I can confirm that MIDI feedback is working from the USB B port using a MIDI monitor app. You can download this for free to help troubleshoot the issue: https://www.snoize.com/MIDIMonitor/
I’m not sure if your test is a good way to determine when the H9000 has fully booted. In my testing, I am seeing the H9000 as an available MIDI device before it has finished the boot cycle.
Can you provide some more information about why you are unable to know when it has booted? When viewing the front panel, you will see the screen go to the main UI page after the progress bar is full. On an H9000R unit, there are LED patterns that should the stage of the boot cycle.
It should not take more than about 3 minutes for the H9000 to fully boot. If you turn it on, open the Emote app, and wait 3 minutes, you should see it appear in Emote once fully booted. That is my best recommendation for how to know when it has finished booting.
