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There may come a time when your Windows 10-powered machine will just not recognise a USB device. This issue has existed on Windows since the days of Windows 98, and sadly, Windows 10 also seems to have inherited the quirk. Thankfully it isn’t difficult to make your device detect your USB device. Follow the below-mentioned methods to see if your computer gains senses and stars detecting your device.

Open Control Panel Device Manager Plug in your device Locate Universal Serial Bus Controllers Apple Mobile Device USB Driver. It is also possible the device may show under Imaging Devices, Portable Devices, Other Devices or as an MTB USB Device. IHV USB Audio 2.0 drivers and updates. For IHV provided third party driver USB Audio 2.0 drivers, those drivers will continue to be preferred for their devices over our in-box driver unless they update their driver to explicitly override this behavior and use the in-box driver. Audio Jack Registry Descriptions. USB Drivers are one of the must-have tools to be installed on your PC or Mac. Because of that, your mobile device interacts with your PC.These work as Bridge between your Phone and your computer. The USB drivers help us to connect our phone to the computer and perform tasks like transferring data, syncing your device with a PC. I would suggest you to run Hardware and device troubleshooter and check if it helps: b. Type troubleshooting in the search bar, click on troubleshooting. Click on Hardware and Sound, click on Hardware and Devices. Follow the steps from the wizard to run the troubleshooter. For reference: Install USB 3.0 and other USB devices. All this devices use a PL2303 to provide a connection to an USB port, but inside, they are RS232-like interface build (and appear as a COM port in your operating system). When you plug the device into USB, it is well recognized by W10 and it try to load the Prolific driver.

Restart

As Moss and Roy famously put it in The IT Crowd TV show, a simple restart can do wonders for you. So plug out the device, reboot the computer and plug it back in to see if anything changes.

Driver Issue

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Sometimes your USB device, which is plug-and-play nature really need a set of codes, in this case known as a driver, to interact with your device. If the computer prompts you to install a driver, let it try. If it doesn’t, go to Control Panel > Printers and devices to see if there is any Unidentified USB device or Unknown device listed there. In case there is, go to its Properties and update its driver. You might again need to reboot the machine, Alternatively, you might want to visit USB device’s manufacturer website to get a driver for it.

Plug-out all other USB devices

If your newly inserted device isn’t getting read by the computer, try disconnecting other USB devices to see if anything helps. Sometimes having multiple devices on the machine may create a conflict.

Fix USB Root Hub

If the aforementioned methods still don’t make your device recognisable, you could try opening Device Manager, expanding USB Serial Bus controllers. Once there, right click on USB Root Hub and click Properties. Click on the Power Management tab and uncheck the option that says “Allow the computer to turn off this device to save power”. If there are more than one USB Root Hub listed, you will need to perform the same with every entry. Click OK and restart your computer. Plug back the USB device in and see if the computer is able to recognise it.

Try a different computer / operating system

If your USB device is still not showing up on the system, you might want to try it on any other device, and also check if it works on any other operating system. In case it does, transfer all your important files onto a different device. In case it doesn’t, we’re afraid your USB device has probably gone rogue.

Dec 21, 2020 • Filed to: USB Recovery • Proven solutions

Have you ever had difficulty connecting your devices to your computer using a Prolific USB to Serial adapter? If yes you are lucky to find this page, it will give you all the information need to fix an unresponsive Serial driver adapter. You may have noticed a yellow exclamation mark hovering over or beside the USB to Serial Driver when searching your Device Manager and if you have we can all agree that it signifies a prevailing problem.

Overview of the Error

If you are not able to connect your device to your PC using a USB to Serial adapter it may be that

  • The USB driver is outdated
  • The USB Driver is missing
  • Or even a corrupted driver

While you can't be so sure what the exact problem is there are solutions you can adopt to fix the issue once and for all. Read on to find quick fixes to resolve the problem.

1# Fix Prolific USB to Serial Driver not Working

Solution: Roll your Prolific USB to Serial Driver back to an older version

Updating your drivers often work wonders for your system because it makes sure that it runs on the latest features that guarantee maximum functionality. Unfortunately updating your drivers can cause this kind of error especially if your latest update does not work too well with your hardware. Once you upgrade your PC to the latest Windows version your Prolific USB to Serial Driver also updates to the latest driver software and if the driver is not compatible with your Hardware issues may arise. To correct the error, you will have to download the driver again by following these steps.

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  • Right-click on your PC Start button and open Device Manager
  • Double click LPT and COM ports then locate the Prolific USB to Serial Driver and right-click it so you can select Update Driver
  • For driver software click My computer
  • From My computer select 'Let me pick from a list of drivers available'
  • Choose an older version from the list then click Next
  • The driver you selected will be installed automatically
  • Once it has been downloaded reconnect the driver to see if it works.

2# Fix Prolific USB to Serial Driver 'Coder 10'

Driver issues reveal themselves in so many ways or through messages such as

  • This device will not start (Code 10)
  • There is no driver installed in this device
  • The driver was not successfully installed

A code 10 error may arise because the chip you are using is not an original one. If you are using a fake, the manufacturer has a way of disabling it due to copy write infringement and the copy write takes effect once you download a recent update. To protect your PC from getting this code, you will have to make sure that your Windows 10 never updates a driver without approval. Updates come in the form of 64 bit and 32-bit drivers. Below we will show you how to work your way around the problem.

Window 64 bit Fix

To fix Windows 64 bit OS including Prolific USB to Serial Adapter, follow through these steps.

  • Download 'PL2303_64bit_Installer.exe and Save
  • Remove every USB to Serial adapter from your PC and double click the 'PL2303_64bit_installer.exe
  • Follow the prompt by plugging in one USB to Serial adapter the click on Continue
  • Reboot your PC to get Windows up and running

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If you have followed these process through and you still see the same error go to your device manager

  • Open the control panel and navigate to Device Manager
  • From your control panel navigate to the System category and click the Hardware tab
  • Scroll to the LPT/COM port and double click Prolific USB to Serial Comm Port
  • Click Drivers in the Properties section
  • The Driver you choose should read '3.3.2.102 with an appropriate date attached
  • If the date is wrong then it means the wrong driver was installed
  • Unplug the Serial adapter and run the steps again to install the correct driver

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Window 32-bit

For Windows 32-bit OS systems follow these steps

  • You will have to download the 'PL-2303_Driver_Installer.exe and save from Microsoft download link
  • Run the program and eradicate the driver if you can
  • Run the installer once more to install a correct driver

To Troubleshoot for error if your device still does not work

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  • Go to Control panel, enter System to access your Device Manager
  • Scroll down to the LPT/ COM port then double click Prolific USB to Serial Comm Port
  • Click Driver in the Windows Properties section
  • The driver must be numbered as '2.0.2.8' and dates accordingly

If the driver was not installed, remove the Serial adapter then run 'PL2303_Driver_Installer.exe' again. Follow directions in Device Manager to download the correct driver

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The three solutions listed in this article have proven to be quite helpful in fixing a Prolific USB to Serial driver not working on Windows 10. They may appear confusing at first but if you follow each step in detail you can resolve the issue.

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