I think I found out why I could not upgade
using this guide http://community.wd.com/t5/WD-My-Cloud/Easy-method-to-downgrade-to-previous-version-of-the-firmware/…
i was stuck on the 03.04.01-219 since I updated the “version” file with winSCP. I could not update to 4.00.01-623 at all. I even tried to SSH my was in and manually do the update as per the help in this post . I just get stuck at 100% updating for hours.
I renamed the version in the “version” file in the /ect folder to 4.00.01-623 from 03.04.01-219 it was at before I tried to update. Finally a restart did the trick after I replaced the version to 4.00.01-623
