I think it is a mistake to separate the keyboard from the clips at the right side (above the optical drive) at all! Instead, after freeing the other three sides, just slide the keyboard slightly to the left, and leave the clips attached to the keyboard. For reassembly, just put the keyboard in its approximate place and slide it to the right to get those clips into position. Be sure the keyboard is really snug against the machine’s case. Then press the other three edges of the keyboard down.