It is not easy to determine the reason for your computer’s USB Device Descriptor Failure. You may think that it is due to a newly installed hardware, but that is not the case. USB Device drivers are programmed into your computer system in the form of program modules. These program modules are installed automatically with your installation of Windows.
The USB Device drivers that work with some USB devices are unique to that device. The USB drivers determine the behavior of the USB device. Thus if one device driver malfunctions, it will not cause the others to malfunction also. This means that if you have two identical devices, one of them having a USB Device Descriptor Failure, then the other will also not show any changes or malfunction.
Various Causes of Unknown USB Device Descriptor Request Failed
Thus the question ‘what causes USB Device Descriptor Failure?’ can be answered by saying that such error is caused due to missing or wrong USB drivers. Such missing drivers are basically generated during the install of the operating system and driver update. The drivers thus installed and updated will display as necessary, but when these are not working, you will get a USB Device Descriptor Failure message.
Many times, if such missing drivers are not rectified, you will find that your device still does not function properly. This is mainly because the USB device uses the OTP (ostp) driver to communicate with your USB hub. In such a scenario, any communication between your device and hub will be impossible, unless the OTP driver is programmed properly. Sometimes it happens that you get the USB Device Descriptor Failure message, even when you are in the process of updating the OTP drivers. So, how then will you diagnose which USB device is not working?
In such a situation, you may have to look for clues, to check whether the USB Device Descriptor failure is related to a missing or incorrect driver. The first step would be, download the USB drivers updater software from the internet. Look for an application that has been downloaded many times by many users. Once downloaded, it would scan your computer for all the required drivers and would repair the errors automatically.
Sometimes, such a software package may not contain the latest drivers. It may only be a repository of the most popular drivers available for the version of your operating system. So, your USB device might not be functioning, because of missing or outdated drivers. This is also a very common problem that is faced by most users.
You should try to install the latest drivers for your USB device. However, it could be a rogue device driver that has caused the USB ports to stop working. If you are using Microsoft operating system, just download the drivers needed for your computer. They will be provided along with the operating system. However, if you are using another operating system like Linux, then follow the appropriate instructions given in your user manual.
Sometimes, such a USB port may not work even after following the above procedures. In such a situation, you can open your device in a hardware USB port reader and try to see the status of the device. If you find no such USB device in the list, then it’s time to use the device driver checker. It will provide you with all the information you need to determine what causes unknown USB device driver failure.
Once you have opened the device, you can run a scan to detect any error messages. Just hit the ‘scan’ button and let the program run through all the devices present in your system. It will display all the problems found in the device. You can now choose what to do about the errors. You can fix one of them or all of them. But before doing anything, make sure you are completely powered off your system.
You should also note that sometimes, the USB port might not get power from the USB device. In such a situation, you should ensure that all power sources are shut down. Then, you should connect the device to an alternate port. The USB device driver will automatically detect the alternate port and work on it. However, if you want to know what causes an unknown USB device descriptor request failure in such a situation, you can connect a USB splitter.
You should install the USB splitter and then connect the devices that you want to monitor into it. It will display all the activity on the device. If you find out that there is some corrupted data or another error message, you can ignore it. Otherwise, you should boot your operating system in safe mode and use the ‘recover partition’ option in your BIOS.
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