Try one more thing, download and install the Eventide Device Manager: https://www.eventideaudio.com/support/product/14079/installers
Then, power up your H9 while pressing and holding the HOTKNOB button to boot in UPDATE mode . Click “Search for device” in Direct Updater, select the latest software and update your H9 . Wait patiently until it finishes and H9 will restart.
Let me know if this works.