Firmware Updater

WD External Drives External Drives for Mac
2

Hello,

Disconnect the drive from the computer and from the power. Make sure the drive is plugged in directly into a wall outlet and then plug the drive back to the computer. If you still have the same issue then try updating the firmware again.

If this does not work then try formatting the drive.

How to partition and format a WD drive on Windows (8, 7, Vista, XP) and Mac OSX