Keep track of which sides the hinges came from by marking them on the hinges, and on the metal plate of the keyboard.

After removal, you will see a nut at the end of the hinge pivot pin. The hinge has a detent position when the cover is fully open and fully closed. This hinge is too tight. Loosen the nut and test the open/close action. Remember that the weight of the tablet will affect the action. Don't loosen too much.

Reinstall the hinges using half of the screws. Install your tablet into the folio, and test the action. (This is where the parchment paper comes in handy!) Readjust the nut tension until the hinge opens and closes smoothly, but there is enough tension to keep it open in different positions.

Install remaining hinge screws.