rMBP Usb Problem
Hi
I have a mid 2012 15 Inch rMBP and I have problem with one of the USB ports. When I have external drive connected and using Time Machine
it starts backing up and then, after a minute or two, it stops backing up and gives me the error message, "Disk not ejected properly"
I tried repairing the disk, repairing disk permissions and was told that the disk needed to be repaired which I did and the same thing happened.
I erased the disk and the same thing happened. I tried another disk with Time Machine and the same thing happened. Then I tried the same disk
on the other USP port and no problems at all. It seems to be that USB port that is the problem. I tried another external drive that is self powered
on the 'problematic' port and no problems at all. It seems to be a problem with non self powered external hard drives on that USB port.
As a matter of interest, Apple recently replaced the logic board.
Any ideas folks?
Thanks in advance.
MacBook Pro with Retina display, OS X Mavericks (10.9.1)