Description: 2011 MBP (Internal battery). Purchased a month or so again. Problem: I unplugged my USB and Thunderbolt cables from my Macbook Pro that was in Clamshell mode connected up to my 2x external screens (running Windows 7 at the time). I opened the MBP and it wouldn't wake, light was pulsing bottom right but nothing. I turned off the power and went to start up again and it wont turn on now. I have tried the 2x resets SMC and PRAM but still nothing. Held down power for 30secs, nothing. Any ideas or cause or solution before speaking with Apple?