This hinge guide is for models using hinge type K12. This hinge type is used by the following models:
Some colors in the pictures may differ for your model. That is fine, what matters most is the shape of the hinge piece.
The plastic hinge mechanism must be oriented as shown to fit into the base of the keyboard.
Hook the plastic tab on one side of a hinge under the plastic socket on the base of the keyboard. In this example, the bottom of the left hinge is being put into place first.
Pushing from the other side of the hinge, tuck the remaining plastic tab on the bottom of the hinge into the base of the keyboard. You will probably need a tool to do this, like a pair of needle-nose pliers. The tab should just barely be able to fit into the socket on the keyboard. Try not to press down too hard on the hinge, or the plastic tab may break off.
Tuck the top of the hinge into place, one side at a time. In this example, the top left side is being secured first. This doesn’t require as much pressure as the last step, so it isn’t necessary to use a tool. 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.