I'm having this exact problem. I've run the CC tester and the alien head lights on, but once the test is done it come backs to the same as before.
Same problem. Been having it since 4 months now. Here is some of the details in points:
Please think of something other than returning the machine for repairs
I'm getting the exact same issue. I've followed the instructions and reinstalled command center, repaired command center, and the only thing that works to bring all the lights on properly is the tester which is both annoying to have to utilize on every startup and a bit clunky. Any assistance you can render would be greatly appreciated.
I seem to have this same issue, but in conjunction with something bigger that can't be figure out as of yet. I find that restarting it often solves the problem (may take a few restarts).
I should probably also add that when I turn the computer on it does not light up. I do get the alien fx head in the system tray on the right of the task bar; the system seems to think it is operating properly because when you right-click that little icon it will give you the option to "go dark" even though the lights are off. I have to make the command center "go dark" from the tray on the right of the task bar then "go light" again to have the majority of the lights come on. The hotkeys on the left turn on if you cycle them but there's no way to turn the alien head on without the tester. I've also tried the multiple restarts suggested since my initial post. That method unfortunately produced no fruit for me.
I'm inclined to think that its a software issue rather than a hardware issue as the tester is able to work all lights properly. So they just need to fix the command center program's startup procedures and we should be A-okay again hopefully.