Chosen Solution
When I open my Mbp it goes smoothly but when I close it it pops EXTREMELY ugly. Strangely, if I open it more before closing it(in a fluid motion) it doesn’t click or pop. Please help.
It seems a hinge problem to me, unless the Mac screen received lots of pressure when closed and the lid now touches the topcase when moving, but if this is the case you’d have clear signs on the painting on the back side. But still, a breaking hinge seems the most probable explanation. You can inspect what’s the situation by removing the screen, remove the black plastic clutch cover, mount back the screen with a couple of screws and see what happens when you close the lid with hinges now in sight. If ‘it’s a breaking hinge you can quite easily find replacements. You may get some help for the job from the following guide: MacBook Pro 13" Unibody Mid 2012 Display Replacement