Ursprünglicher Beitrag von: mayer ,
To test it to see if it is the keyboard or the logic board use an external USB keyboard, almost any will work. I agree with Chris it probably the keyboard. If the right shift key works, you might be better off just living with it. Most of the 13" keyboards after the 2009 model do have replaceable keyboards. It lots and lots of screws (about 64). I use an electric screwdriver to remove the screws and can generally replace a board in an hour and fifteen minutes, so it's well worth the savings over replacing the uppercase.