This key guide is for models using hinge type k16. This hinge type can be found on the following models:
The plastic hinge mechanism must be oriented as shown for it to fit onto the metal keyboard hooks.
Hook the inner bottom edge of the hinge over the bottom metal hook on the base of the keyboard.
Tuck the top of the hinge into place, one side at a time. In this example, the top right side is being secured first. The top right and left tabs of the plastic hinge should be hooked under the metal hook protruding from the base of the keyboard on each side. You can now check that the hinge works by flexing it up and down; it should pivot easily at its axis.
If your keyboard is missing the rubber spring piece, place it in the center of the hinge. It will be held in place by the surrounding key and hinge.
Align the key on top of its place on the keyboard, and press down evenly. All four corners of the key should click into place.