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I have to use 2 hands, one to push the button, and a fingernail between display and lower case to get the computer open. I read that the wrong screw length caused this, but I cannot find it referenced in any repair manual. Update (08/31/2017) Thanks. the problem is that when you push the button, it doesn’t spring open when resting horizontally. The upper hooks release when I push the button, but it won’t open without assist by a fingernail or screwdriver. If I let go of the button, it re locks closed. Are there springs that are supposed to propel it open?
There are two latches in the top and the receptacles are in the bottom with the magnets. Carefully close the lid and see if they line up and see if the top latches are being pulled down. Gently push the top case in the direction it needs to go after observations. You can also inspect the hooks to see if they are broken or bent. Here’s a video on getting it cleaned out and working: https://www.youtube.com/watch?v=5-3tQAfl… If hinges are not tight: MacBook Pro 15" Core 2 Duo Models A1226 and A1260 Left Clutch Hinge Replacement MacBook Pro 15" Core 2 Duo Models A1226 and A1260 Right Clutch Hinge Replacement
