Disconnect the camera cable by sliding it horizontally out of its socket.

Pull the cable parallel to the surface of the logic board, in the direction of the optical drive. Do not pull straight up, or you will destroy the connector.

If you see a small plastic retainer stuck to the logic board that prevents the camera cable from sliding out, peel it up carefully from the logic board. Apply a little heat from a hair dryer or heat gun if necessary to help soften the adhesive holding it in place. Do not attempt to forcibly disconnect the cable with the retainer in place.

If you still have trouble, use the point of a spudger to push at each side of the connector and "walk" it slowly from its socket.