My Passport Ultra not showing on a Macbook Retina,

It simply blinks fast and does nothing else. Cannot be seen on my Macbook, or on another one, so methinks it’s not the Mac at fault. It was working until it was unplugged after taking an age to close down. Took it into the Macstore when it was bought about 18 months ago, they tried and just got the same. Just offered an exchange. Not much use as I need the data on there - all photos and video rushes. Help please!

Hello there,

Have you tried a different USB cable? Perhaps it could be a faulty USB cable.

OK, I’ll give it a go! Tx