Ben,
I went thru all this pain months ago, refer to the link to the discussion for all the gory detail.
New firmware 632 has been released that fixes the issue, but, you must first get connected.
Just borrow someone else’s iPhone 6 or what ever, any model except iPhone 11 Pro, and use that to establish the WiFi Connection. Once you have the connection, you never have to go back there again, so you are done.
And once connected the Firmware will automatically get updated.
