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Unknown USB device (Device Descriptor Request Failed)

2014-02-20, 14:49 PM

After i updated my Lenovo G580 20150 to Win 8.1 all 3 USB ports stopped working. Now i can't use any USB device (Mouse, Flash drive, portable HDD etc, all working on my other Win8 computers). Below are some screen shots for further information.

Please help to resolve this issue.USB1.PNG




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Re: Unknown USB device (Device Descriptor Request Failed)

2014-02-20, 18:24 PM

hi kmugal,


Welcome to the Lenovo Forums


The issue that your having is most likely the one discussed in this article.


If you have tried the USB 3.0 (x2) and USB 2.0 (x1) ports with the same issue, consider the following:

1. Unplug all USB peripherals connected on the machine

2. Run Windows Update to get the latest patch and bug fixes (reboot if necessary) and try the USB devices.


If the problem remains, consider going back to Windows 8 by doing a Refresh or Reset to isolate any issues on the OS level.




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