I have just bought an alienware m15x and formatted it. As soon as I installed windows again after the format and so on all the lights on my m15x went off and i cant turn them on in any way. Also each time that I turn on my pc the same error pops up something which has to do with the .net framework. I have added an image in order to show you. Moreover sometimes this error is followed by another error which seems to originate from the CC.
The original Command Center software corrupts the C2 chip that controls the lights sometimes.. it has to be flashed. You can google it and find this :http/en.community.dell.com/owners-club/alienware/f/3746/p/19442434/20203326.aspx#20203326
LDSISHERE finsihed the solution for us.. my shop is offering to do this for customers if they are non-techie/do not want to invest in a programmer for the chips.
Your issue may not be the same.. but if the software reinstalls do not help etc.. then it may be time to turn to the reflashing option. I'm located in MA.. LDS is also offering to fix these since he built a programmer.. you have to ship it to him. We are located in Bridgewater MA. [Central Square Computer Repair]
See the thread for details as they are quite involved.