Gently, using The Spudger towards the edge or the top of the phone and lift the face plate off.

Be careful during this step, the touch-sensitive keys and chip board (which is green) may remain attached to the face plate. Gently hold the chip board down as you lift the face plate.

Once you have removed the broken face plate, replace it with your the new one.

Follow all of these steps in reverse order to reassemble the phone.