Thanks for this post! 2 year old yanked the iPad off the centre of the dining table today and the screen went black but I could see its still on. Desperate to get it to work after pressing the home and wake buttons non stop, i shook it up and down and back and forth, several seconds later, the green red fuzzy screen came on, but despite its messed up colors, it allowed me to google and read this helpful post, then I slapped it gently but it remained stubborn , so with my wrist and arm , I banged on the back of the iPad as if it was choking. A little forceful i admit, but lo and behold! It's back to its original state! Thanks a bunch! Will be careful in future. Little hands work like a ninja.