MacBook Pro – unresponsive, semi-backlit blank screen
no display – backlight came on after power up but no just a blank dark semi-light screen. Power reset multiple times – no love.
Attempted common startup combinations
Need to reset system management controller! Stuck in hibernation…
Step 1. Hold down shift + CTRL + OPTION + Power for 5 seconds
Observations: Nothing should happen – no power up – zero
Step 2. Hold down CMD + OPTION + P + R + Power ( Finger Twister) until you hear 2 Apple startup chimes.
Thats it! You should be back in business.