My display stopped working, showed weird patterns and shut off at random. My graphics basically looked like striped christmas wrapping. I got a 15" MacBook Pro Late 2011 model.
Some googling for the issue on my iPad showed that baking my logic board, as weird as it sounds, might actually be the solution. Since it was a dead logic board in my eyes, I was willing to give it a try. Correctly put, this process should reflow some of the solder on the logic board and connect it properly.
And later I found out these video issues are a thing, thus Apple offering a repair for these models. If you happen to have this video problems: You might want to turn it in at your local Apple repair store.
The program covers affected MacBook Pro models until February 27, 2016 or three years from its original date of sale, whichever provides longer coverage for you.
Read further if you are into cookies.
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Open your MacBook Pro, extract the logic board. Instructions can be found here at iFixit.
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I also removed all 3 heatsink components and removed the old thermal paste.
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Little aluminium spacers in the screwholes put some distance between the logic board and the hot surface of the oven tray.
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Bake it at preheated 170° Celsius (about 338 Fahrenheit) for 7 minutes
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Profit. Working graphics again!
Image taken from http://www.sweetsugarbelle.com/ thanks :)