Chosen Solution
Macbook doesn’t close properly. The screen part isn’t aligned properly with the bottom part when closing the macbook. Can’t fully close it anymore.
Update (02/17/2018) @danj The hinge piece has been broken off. Do I have to buy a new screen or can I solve it in another way?
Depending on what happened you may need to replace the hinges or maybe just re-align them. Follow this IFIXIT guide: MacBook Pro 15" Retina Display Mid 2012 Display Assembly Replacement Jump down to Step12 to see if loosing the hinge will allow you to re-align it. If the hinge has failed (galled up) then you’ll need to replace one or both.