If you do a forum search you’ll find numerous threads discussing how to roll back to a previous firmware version. Most of those threads however cover rolling back the first generation v3.x/v4.x firmware My Cloud units. Its possible one may be able to use the same method used on the v4.x to roll back their v2.x.
One can find a listing of previous firmware and links to them in the following thread.
One how to roll back thread.
