Hi everyone, I’m hoping someone can help me.
I am a new FM3 owner and I am unable to connect the unit to my windows 11 computer. When I look in device manager it shows “Unknown USB Device (Device Descriptor Request Failed)”.

I have downloaded and installed both of the files in the FM3 drivers bundle and I am using a USB-B to USB-A cable. I have tried restarting both units multiple times and I have uninstalled and re-installed the driver bundle multiple times. I have also tried it on my other USB drive and still get the same error. I do not have another computer to try in on. The FM3 is brand new and says that it passed all of the quality assurance inspections. I suspect it’s a problem with the driver, but I’m not a techy guy.
It’s a USB 2.0 A-B cable, 2M in length. No hub, straight into USB port (don’t have one to try either). No, I don’t have a different cable.
Yes, I have tried removing the unknown usb device and reinstalling the drivers and restarting computer. As soon as I plug it back in I get the same error.
Best I can tell all of of chipset drivers are installed and up to date (it says “The best drivers are already installed” when I try to update them).
Yes, I mean I also tried it in my usb-c port (using an adaptor), but have the same error message.
It is a laptop. 12th Gen Intel(R) Core(TM) i5-1235U 2.50 GHz running Windows 11 Home.
I haven’t had a problem with any other USB devices previously which leads me to think it’s a problem with drivers (or possibly the unit).
Not sure if this is helpful, but here is some more details from when I go into the events tab for the failed USB.
Device USB\VID_0000&PID_0002\5&2cdbcaf7&0&2 was configured.
Driver Name: usb.inf
Driver Package ID: usb.inf_amd64_5a2240bed0005a37
Class GUID: {36fc9e60-c465-11cf-8056-444553540000}
Driver Date: 06/21/2006
Driver Version: 10.0.26100.3912
Driver Provider: Microsoft
Driver Section: BADDEVICE.Dev.NT
Driver Rank: 0xFF0000
Matching Device ID: USB\DEVICE_DESCRIPTOR_FAILURE
Outranked Drivers: usb.inf:USB\DEVICE_DESCRIPTOR_FAILURE:00FF2000
Device Updated: false
Parent Device: USB\ROOT_HUB30\4&338de6a&0&0
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Restart your computer:A simple reboot can resolve temporary glitches in the USB controller drivers.
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Uninstall and rescan the device:
- Open Device Manager.
- Find the “Unknown USB Device” and right-click it.
- Select Uninstall device.
Go to the Action menu and click Scan for hardware changes. Windows will attempt to re-detect and reinstall the device.
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Check power settings:
- Open Control Panel > Power Options.
- Click Change plan settings for your selected plan, then Change advanced power settings.
- Expand USB settings and then USB selective suspend setting.
Change the setting to Disabled, click Apply, and then OK.
- You may also need to uncheck Turn on fast startup in the main Power Options window, save the changes, and restart your computer, as shown in this YouTube video.
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Update USB drivers:
- In Device Manager, expand Universal Serial Bus controllers.
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- Right-click on each device and select Update driver.
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- Choose Browse my computer for drivers, then Let me pick from a list of available drivers on my computer.
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- Install the generic driver and repeat for all USB devices, then restart your computer.
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Check for a bad cable or port:
- Try a different USB port on your computer.
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- If you’re using a USB hub or extension cable, try connecting the device directly to the computer to rule out a faulty cable or insufficient power from the hub.
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Try a different computer:Plug the USB device into another computer to see if the issue is with the device itself or your computer.
