I replaced a MacBook Pro keyboard and touchpad today. I've replaced many laptop keyboards and such jobs are (generally) quick and painless. "So how hard could this one be?" I asked myself. I had to disassemble the notebook completely in order to get to the keyboard and… I couldn't believe what I saw… the keyboard was secured with zillion tiny little screws (below are a couple of pictures showing how small these screws are). One of those little guys was between each and every key. And because they were so small, it was very easy to damage their head (after this they would become useless). So I had to remove them and then screw them back in without damaging them. Now I can (sort of) understand why an Apple Service Centre said to the client that the problem couldn't be fixed.