MyBookLive HELP!

I just downloaded the new firmware update for my MyBookLive 3TB drive.  It downloaded fine and started to reboot. However it hung while rebooting.  Now I have no access to my drive and I’m affraid to unplug and reset for fear that the firmware didn’t take!  HELP!!

It finally came back 2 hours later!  Whew!  Thanks anyway.

Chris