My Cloud Home firmware (re) install

A while ago I reset my disk “My Cloud Home 2TB” badly, so it did not reconnect. After that, I manually format all the partitions. Now I need to install the system or firmware again.

How can I do it?

I downloaded the “GPL Source Code” firmware, but I do not know how to install it.

GPL Source Code is for Advanced users that want to compile and install their own customer version of firmware on a My Cloud Home. It’s not for end users looking to update firmware. Matter of fact, it’s not even possible to update firmware on a My Cloud Home manually.

Thanks for your answer.
My disk has nothing installed at this time. So, I have no way to reinstall the system? I give up for lost the disc?