White LED - No connection

Many users very familiar with Linux have reported you should not use

apt-get update

and that

apt-get upgrade

will defintely brick your NAS.

You now have to unbrick your NAS.

http://community.wd.com/t5/WD-My-Cloud/How-to-unbrick-a-totally-dead-My-Cloud/m-p/651195/highlight/true#M3848