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SOLVED: Thinkpad T420 does not recognize external drive
For a few years I have been working with an HP Elitebook 8460p to which I connected an external drive, a Western Digital Element 2042. Working just fine. A few months ago I purchased a Thinkpad T420 and I thought that connecting the external drive would be a piece of cake but unfortunately no. So far I have been been enable to do so and I can't figure out why. When booting the drive doesn't show up in the drive's list.
I have been trying just about each port on my Thinkpad and none worked, the actual cable and port seem to work as the light at the back of the drive are on.
I know for a fact that the drive works, I just fired off my HP Elitebook 8460p again to make sure it was indeed still alive and it is fine. I can see it on my HP's boot menu and in the HP's disk management details. But not on my Thinkpad T420.
I used an enclosure with another drive to make sure the USB ports on my Thinkpad T420 are ok and this works fine. I also changed the drive's letters.
If the ports on the Thinkpad is fine if the external drive is fine, why then my external drive is not recognized by my T420 thru the USB port ?
This is the external drive's information as they are shown on the HP
Last edited by Corobori; 14 Jul 2016 at 16:45.