I have one of these and noticed that the LED was not working. Taking it apart there was no LED in the bezel. I think this may have had a //c internal drive transplanted into this case.
I tried adding an LED as well as the appropriate cable and header (with the correct pinout after watching a teardown video) and it doesn't light up.
I'm using off the shelf LEDs, do these units use special ones? Is there any firmware in these that might not be utilizing the LED? Was surprised it didn't just work. :(
Any ideas/help would be appreciated... not a big deal, but now that I have it apart I'd like it to work if I can.