MyBook Studio not working after latest Yosemite update

Hi ArMak,

Is there an update for this?  I’ve had my My Book Studio 2TB ext drive for about a year.  Sudduenly it’s not responding.  It’s power cable is plugged into an outlet with a USB cable to my MBP, however it’s getting no power and doesn’t appear in finder or disk utility.  I upgraded to Yosemite not long after it was released.  What’s going on?  Why is the My Book not getting any power or recognized by my MBP?  Can I access my data somehow?  

Please help!  Thank you. 

Miles