How to change main login email?

How to change main login email?
I made something like “erase whole data” but after a few minutes WD woke up with first login information.
how to reset it for example for resell?

Yeah, strange. Tried changing the e-mail adress isn’t option at this time… lol I guess.

so… it is impossible to sell it without a … email account… lol… f**k…

@semimatt an active internet connection is required for My Cloud Home.
You can demote the current device owner and use a different email address address as explained in the article listed below.

https://support.wdc.com/knowledgebase/answer.aspx?ID=20391&s=