Using the Quad Lock case for your Samsung Galaxy S20 Ultra is a piece of cake. To attach your phone to the mount, align the case with the mount and use the dual - stage Lock. It should click into place easily. Detaching is just as simple; use a gentle, even motion to unlock it. As for maintenance, you can wipe the case with a soft, dry cloth regularly to keep it clean. Avoid using harsh chemicals as they might damage the case's material. When it comes to mounting, always make sure the surface is clean and dry for a secure hold. And don't worry about over - tightening; the case is designed to be secure without excessive force.