Yes, I have five Halong T1 firmwares in total. It is running the latest one right now, so tomorrow I think I'll try downgrading to the second latest and see what happens.
So, I had unplugged it three days ago. When I came back and plugged it in today, all of a sudden all three boards work again.
I don't know what to make of it. It's weird how the T1 hashboards seem to randomly decide whether to work or not.
I had originally left it unplugged for a few hours and nothing happened when I plugged it back in. I guess three days is the optimal time period for a resurrection?