Sounds like another botched firmware upgrade. I would contact the WD support number and setup an RMA.
http://support.wdc.com/contact/contact.asp?lang=en
Or by web using
http://support.wdc.com/warranty/index_end.asp?lang=en
If you can’t afford data recovery and don’t mind breaking your warranty you can also fix it yourself if you have a little computer knowledge. You may also ask WD if they will allow you to open your MBL to recover the data using the data recovery section of this guide and if they allow you to do so, you can backup your data and then RMA the drive.
http://community.wdc.com/t5/My-Book-Live/GUIDE-How-to-unbrick-a-totally-dead-MBL/td-p/435724
