To open the caseback, remove the four screws by using the provided screwdriver.
Insert your smartwatch into the silicone cover. Make sure to align all openings with the button and crown of the watch.
Make sure the button and crown are aligned with the watchcase.
Make sure the button and crown are aligned with the caseback. The screws on the caseback must be attached crosswise like an X. Start with the upper left, the lower right, the upper right, and the lower left.