Mid 2011 11 inch MBA. May be related to recent firmware update. I have tried all of the keyboard tricks and nothing will boot it. I figured out that by doing the triple SMC reset and holding the power button for several seconds, I can get the fans to come on high, but nothing else happens. I opened it up and unplugged the battery for a bit, but still no change. I also removed the SSD, and still get the same symptoms whether it's left out or plugged back in. Does anyone know what this could be? I found 2 leads on other boards. One said that this happens when the temp sensors are faulting, and the other said it happens when the computer doesn't see an OS. Please send any suggestions. I am going to send it in, but they said they would have to wipe the SSD, which would really suck.