Fix Device Descriptor Request Error | Unknown USB Device

Fix Device Descriptor Request Error | Unknown USB Device

If you are experiencing a “Device Descriptor Request Failed” error or an “Unknown USB Device” error in Windows, it means that your computer is having trouble communicating with a USB device that has been plugged in. This can be frustrating, but there are some steps you can take to try to fix the issue.

1. Unplug the USB device: First, unplug the USB device that is causing the error.
2. Restart your computer: Sometimes, simply restarting your computer can fix the issue. After your computer has restarted, plug the USB device back in to see if the error has been resolved
3. Try a different USB port: If restarting your computer doesn’t work, try plugging the USB device into a different USB port. Sometimes, a particular USB port may be having issues.
4. Update USB drivers: It’s also possible that your USB drivers are out of date, which can cause issues with USB devices. To update your USB drivers, go to your computer manufacturer’s website and download the latest drivers for your computer’s USB ports.
5. Disable USB selective suspend: Windows has a feature called USB selective suspend, which can cause issues with USB devices. To disable USB selective suspend, go to the Power Options menu in the Control Panel and select “Change plan settings” for your current power plan. Then, select “Change advanced power settings” and scroll down to “USB settings.” Expand the “USB selective suspend setting” option and set it to “Disabled.”
6. Reinstall USB controllers: If none of the above steps work, you can try reinstalling the USB controllers in Device Manager. To do this, go to Device Manager, expand the “Universal Serial Bus controllers” option, and right-click on each USB controller and select “Uninstall device.” After all the USB controllers have been uninstalled, restart your computer and the controllers will be automatically reinstalled.

Hopefully, one of these steps has fixed the “Device Descriptor Request Failed” error or the “Unknown USB Device” error for you. If not, there may be an issue with the USB device itself, and you may need to contact the manufacturer for further assistance.

FAQS

Here are some frequently asked questions about fixing the “Device Descriptor Request Failed” error or the “Unknown USB Device” error:

What causes the “Device Descriptor Request Failed” error or the “Unknown USB Device” error?

1. The error occurs when your computer is unable to communicate with a USB device that has been plugged in. This can be caused by a variety of issues, including outdated USB drivers, faulty USB ports, or issues with the USB device itself.

What should I do if I see the “Device Descriptor Request Failed” error or the “Unknown USB Device” error?

1. The first step is to unplug the USB device and then restart your computer. If the error persists, try plugging the device into a different USB port, updating your USB drivers, or disabling USB selective suspend in the Power Options menu.

How do I update my USB drivers?

1. You can download the latest USB drivers from your computer manufacturer’s website. Look for the “Support” or “Downloads” section of the website and search for drivers for your specific computer model.

What is USB selective suspend, and why should I disable it?

1. USB selective suspend is a feature in Windows that allows the operating system to conserve power by selectively turning off USB devices that are not in use. However, this feature can cause issues with certain USB devices. Disabling USB selective suspend can help resolve these issues.

What should I do if none of these steps fix the issue?

1. If none of the above steps fix the issue, there may be a problem with the USB device itself. Try plugging the device into another computer to see if it works there. If the device still doesn’t work, you may need to contact the manufacturer for further assistance.