How and where to Downgrade firmware?

There are a number of ways in which WD have forgotten that their customers are not part of their development team, and may not understand WD’s adopted, non-standard terminology, or the systems surrounding the MyCloud that the MyCloud relies on.

I’m sure the user manual makes sense to the WD dev team, but it’s not always clear to the neophyte.

For instance, here are some comments from a year ago, when the latest manual was released: