Last night I basically did everything to my MAG 254 (reset, factory reset, downgraded via multicast, downgraded via USB, upgraded via multicast, upgraded via USB, restarted portal, etc, etc) and I'm still either getting a frozen progress indicator or black screen. Issue must be on the other end. I'll just hold back and keep an eye out for an update. Thanks everyone for all your expertise in this thread. I learned a lot.