I managed to take off the front and back covers and now I am left with a metal board attached to the circuit board.
I don't know how or if the metal board and the switches can be taken apart or not. I would not want to damage it.
I can clean between them with a toothbrush to get the dust off, and by using some other cleaning products for the metal, but it would be nice if I could properly clean the metal plate.
If someone knows more about this or can give me a link to a guide, I would appreciate it.
I am attaching a few photos for anyone who may know more about this:


