Having removed the back case, the LCD screen should be sitting loosely on the camera, attached only by a wide ribbon and a narrow ribbon.

The ribbons are connected to and held in place by small plastic latches.

To remove the wide ribbon, gently pry the spudger underneath the black plastic latch where the ribbon connects and lift up. The ribbon should slide out easily.

Repeat the same process with the smaller ribbon, this time looking for a light blue latch.