I bought my Area 51 last year, and its been great up until last week.
I was in the Command Centre and noticed the updater saying it had a new update for me. Accepting this, the new download extracted etc and started installing.
However, when it got to Removing Backup files stage, a new small window appeared with the AlienFX bootloader update, with a moving bar. Unfotunatly, this didn't actually didn't do anything and was still sitting there hours later, unchanged. I was forced to kill this via task manager.
Upon my next bootup, I noticed all my lights were dark, and my fans didn't slow down like they usually done, they are at about 50%-60% at a guess.
The AlienFX update also tries to run every time I log in now, but with the same result as before, i.e it sits there and doesn't do anything, even after an entire day of leaving it alone.
I've gone into the Diagnostics just at bootup, and got the message: 0F00:133C under the Express Test, and under the Master I/O board, it has a message saying the board is in "Firmware Download Mode"
Whilst following a few other suggestions on these boards, I now have a new error under diagnostics, Error Code 5D00:0009 UTUSBTM - Device_initialization_failure - user must reattach unit on Root Hub Port 2 and re-start test. and now have a yellow explanation mark under Device manager, and my Card Reader has disappeared from My Computer.
Any other suggestions as what to try
Try Power Reset fix and jumper fix:
It's too late now, but in the future, don't use the Upgrader inside CC.
Completely uninstall CC
Do Power Reset dissipate procedure
Install new CC (cross-fingers)
Make minor config changes and test CC
Followed your steps there, and the noticed the Power Reset Dissipate Procedure brings back my card reader, and gets rid of the unknown device in device manager.
However, it seems to stuck on installing again, below is a screenshot of the bar.
I do notice under task manager, its AlienwarAlienFXTester.exe that seems to be the process that's running all the time.
If the MIO-Board tests in Dell Diagnostics pass now ... try a Windows Restore Point from a day before you tried to run the CC upgrade. That should fix the CC install process that is still running.
Will check the diagnostics again when i get a chance, but I just checked the Restore Point settings there, and unfortunately my oldest point is from the 2nd November (yesterday).