Check out other guides for removal of the keyboard for Lenovo N23/N21 Chromebooks.

Remove the screws from the bottom of the Chromebook.

On a clean surface, fold the Chromebook screen over to the back to remove the keyboard.

Using a Jimmy remove the keyboard starting at the top of the keyboard.

When the entire keyboard has been popped up lift the keyboard from the end opposite the trackpad and carefully disconnect the trackpad and keyboard ribbon cables.

Flip over the keyboard so that the keys side is down and place it to the side of your workspace.

Check that the thermal pad is still stuck to either the keyboard or the motherboard.