I've found only fixes that involved board replacement. Be sure to check your warranty and there are folk that got into the service menu which is, as you know not a good idea as Samsung doesn't support you getting in there and may void the warranty if you tell them you did that.
I have a Samsung LED model no. UE32ES5500K. Last night the screen flipped upside down and, looking online, I have not been able to find the solution to this. Not sure how it happened but would really appreciate some help! Thank you.