I used the following guides:
http://community.wd.com/t5/My-Cloud/GUIDE-How-To-Unbrick-your-2TB-3TB-4TB-My-Cloud/td-p/765959
http://community.wd.com/t5/My-Cloud/How-to-unbrick-a-totally-dead-My-Cloud/td-p/651195/page/6
http://community.wd.com/t5/My-Cloud/How-to-unbrick-a-totally-dead-My-Cloud/td-p/651195/page/5
And it did not help