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3 Posts

09-19-2014

Skokie, Illinois

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Lenovo Yoga 14 (20 FY) USB 3.0 not working

2016-05-14, 18:15 PM

I recently downgraded from Windows 10 to a Windows 7 operating system. When I downgraded I needed to disable secure boot and disable OS Optimized settings in the BIOS in order to boot from the USB drive to install Windows 7.

 

When I reinstalled Windows 7 I did a clean install, put in my Windows 7 Key and installed all the necessary drivers. However, it seems that my USB 3.0 ports are not working. On the flip side, when I plug in my phone or a thumb drive into the USB ports, these devices are recognized in the BIOS. Also, I looked in the device drivers and it seems that my USB drivers are installed.

 

There is, however, an unknown device, which in the details tab reads:

IUSB3\ROOT_HUB30&VID_8086&PID_9D2F&REV_0021&SID_504C17AA
IUSB3\ROOT_HUB30&VID_8086&PID_9D2F&REV_0021
IUSB3\ROOT_HUB30&VID_8086&PID_9D2F

 

Attempted solutions: I tried to reset all BIOS settings back to factory settings but when I did that my OS would not start until I turned secure boot and OS Optimized Settings back off. Also I tried looking for drivers on the website but  could not find any to do with the USB 3.0 ports.

 

Looking forward to any advice anyone can provide in me fixing this issues.

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2380 Posts

03-09-2012

CA

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Re: Lenovo Yoga 14 (20 FY) USB 3.0 not working

2016-05-14, 18:42 PM
USB 3.0 wasn't supported back then. Doesn't work with Win 7. You have to stick to the 2.0 ports. Return to the original installed OS or Windows 10 for it to work.
T520 Model 4239 Intel(R) Core(TM) i7-2860QMbr>; Nvidia NVS 4200M Win 10 64bit
Z70-80 I7 - 5500U 16GB GB - 1TB HD Win 10 64bit FHD 17.3", G840 w/2GB

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4968 Posts

11-22-2011

US

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Re: Lenovo Yoga 14 (20 FY) USB 3.0 not working

2016-05-14, 18:44 PM

Sounds like an Intel USB 3.0 hub driver.

intel driver update utility

0 person found this solution to be helpful.

This helped me too

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3 Posts

09-19-2014

Skokie, Illinois

2 Signins

58 Page Views

  • Posts: 3
  • Registered: ‎09-19-2014
  • Location: Skokie, Illinois
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  • Message 4 of 4

Re: Lenovo Yoga 14 (20 FY) USB 3.0 not working

2016-05-14, 18:51 PM

Thank you for the correct solution. All 3 of my USB 3.0 ports are now working!

 

Appreciate it.

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