REVOMAZE Lite

Hello. In the regular Revomaze, there's nothing sticking out from the side, but in the lightweight version, there's a cylinder. Today, I tried to open the blue Revomaze and drew a detailed diagram, but all the steps led me to a dead end. How can I determine if the lightweight version is ready for opening? Can anyone provide guidance based on the diagram? Do I need any tools for disassembling and assembling the product? Is there a certificate for the aluminum cores?