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sreekanth1331

2 Posts

136629

October 13th, 2013 14:00

USB 3.0 port not reading USB 2.0 device

hello everyone. i have a dell laptop with 4 usb 3 ports. i have a seagate external hd usb 3 which works fine in my laptop's  usb 3.0 ports. but my transcend usb 2.0 pen drive  is not recognized in these usb 3.0 ports.. i have heard that usb 3.0 ports are backward compatible,  then why does't these usb ports recognize usb 2.0 pen drive????im using windows 7 ultimate version. can somebody pls tell me how can i rectrify this problem.

thank you

1 person also has this problem

Dell-Rajesh R

6 Operator

 • 

3.3K Posts

October 14th, 2013 13:00

Hi sreekanth1331,

May I know the system model ?

You may Uninstall and reinstall the USB 3.0 drivers.

To remove and reinstall all USB controllers, follow these steps:

  • ClickStart, clickRun, typesysdm.cpl in theOpen box, and then clickOK.
  • Click theHardware tab.
  • Click theDevice Manager button.
  • ExpandUniversal Serial Bus controllers.
  • Right-click every device under theUniversal Serial Bus controllers node, and then clickUninstall to remove them one at a time.
  • Restart the computer, and then reinstall the USB controllers.
  • Plug in the removable USB storage device, and then test to make sure that the issue is resolved.


Refer the following link which has more troubleshooting steps for USB:

http://dell.to/1cGSyPF

Let me know the status.

sreekanth1331

2 Posts

October 15th, 2013 11:00

hello sir

thanks for ur reply

my laptop model is dell inspiron 15 5520

will the usb driver automatically install at restarting?? or should i do it manually??

Dell-Rajesh R

6 Operator

 • 

3.3K Posts

October 15th, 2013 15:00

Hi sreekanth1331,

Yes once you restart the computer after uninstalling the USB drivers, the drivers would be automatically installed.

Also, you need to install the USB 3.0 drivers from the following link:

http://dell.to/168rUjw

Awaiting your response!

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