Is the external hard drive powering on at all?
hmmm… I think you might have a different problem, because when I had my problem, when I plugged in my hard drive it would flash blue for just a couple of seconds and then it would shut off and then I would get that error message.
if you’re not even getting the error message then it might be something else going wrong.
unfortunately, I’m not really much of a computer expert but I’m sure there are others here who could help you better.
