Just reflashed my box and it all installed as expected
You go through the video wizard, through the tuner config, through the network wizard
You then start the WB installation. You select no on initalising USB
Does it get to the end of the setup i.e run a channel scan and alter screen position?
I dont honestly know what else to try the backup I made you was working perfectly on my box.
When I restarted the box a few times it brought me back to BBC1. Which is what it is meant to do.
What happens if you setup as IPTV only and setup your tuners etc manually