Disclosed herein is a method of updating an electronic device employing a firmwaresoftware update system. The aperture can alternatively be created between an edge of the workpart and an external reference plate. Supporting portions abutting against the tray operation portions inherent to respective trays in one to one correspondence are fixed with an interval in the vertical direction to the frames configuring a tray distributingholding portion. Processes for the preparation of the isomeric alkadienenitriles are provided.