Newbie here. My friend cleaned the keyboard of my macbook and since then the delete, i, shift, enter, and a couple other keys don't work at all. She said she might have spilled liquid onto the keyboard, I don't know if it was just water or cleaning solution or something else. It was dry by the time I turned it on and realized the keys didn't work. The macbook itself boots normally, everything is perfect except for those damn keys. Would replacing the keyboard totally fix the problem?