Download SD card reader driver for Windows 10 in Device Manager Press Windows + R, type devmgmt.msc, press Enter to open Device Manager in Windows 10. In Device Manager window, you can expand Universal Serial Bus controllers category. Next right-click on the SD card reader driver and select Uninstall device. Open Device Manager in Control Panel. Expand IEEE 1394 Bus host controllers, and then locate the host controller. Right-click the host controller, and then click Update Driver Software. The screen shot of the host controller and the Update Driver Software is listed in the following example. Press Windows key + X, and click on Device Manager. Click on Action, select Add legacy hardware and click on Next. Click on Install the hardware that I manually select and click on Next. Scroll down, select Ports (COM & LTP) and click on Next. When you plug the device into your USB, Windows will look for the associated driver, if it cannot find this driver then you will be prompted to insert the driver disc that came with your device. Common USB Device errors are ‘ usb port not working ‘, ‘device descriptor request failed error’ or ‘bugcodeusbdriver’ issues.

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

These drivers are designed for use with those GPS units that support USB transfer of data to/from the PC - not to include the iQue. This setup also includes the drivers for the USB Data Card Programmer. This setup combines the initial install and updates for both the USB GPS drivers and the USB Data Card Programmer drivers.

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• The USB driver is outdated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.

• 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

Data Card Port Devices Driver

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

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

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

• 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

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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Contents:

Unknown Device Issue Overview:

As long as there is a device not working on Windows 10, not recognized or incompatible, you may notice this device displays as unknown device with a yellow exclamation in Windows 10 Device Manager.

For instance, after you plugged in the USB device, your USB mouse or keyboard doesn’t work at all and when you check it in Device Manager, there are one or more unknown devices showing under Other devices branch in Device Manager.

In short, this unknown device Windows 10 issue comes up due to mainly two aspects, the one is that Windows 10 can’t detect the hardware, not to mention to find the driver for the device, and the other one lies in that the device driver is incompatible with Windows 10.

What is Unknown Device?

Unknown device means a device cannot be recognized by Windows 10, show it renamed as an unknown device in device manager. Many devices can be called as an unknown device if Windows 10 cannot recognize it and cannot install a driver for the device, such as a graphic card, audio card, touchpad, mouse, keyboard, Bluetooth devices, USB devices etc. This often happened after you upgrade your system from Windows 7, 8 to Windows 10 or you plug a new external device on Windows 10.

How Do I find a Driver for an Unknown Device?

As Windows 10 cannot identify the hardware, it cannot install a right driver for the device, Windows 10 unknown device in Device Manager error code 28 or any other device manager error codes pop up. You can find what your error code is from Driver Properties.

Whatever your error is, USB unknown device or any other device unfound, you can make full use of the ways below to find a driver for your device and enable Windows 10 to recognize the device. At the very beginning, you are supposed to find a driver for an Unknown Device. If no driver is found for the unknown device in Device Manager, perhaps you need to troubleshoot more problems on Windows 10, such as system file, hardware error, etc.

Solutions:

Data Card Port Devices Driver Download

Solution 1: Using Hardware ID to Find Drivers for Unknown Devices

In the first place, you can use the hard id to find the driver for Windows 10 unknown device. In some conditions, maybe you can’t find the device name, so you are unable to find the unknown device driver from the official site or from the Internet. But every device has a hardware id, so if you know the hardware id of a device, you can use the hardware id to fix the unknown device driver issue. Here is the solution you need: how to use hardware Id to find a driver.

Solution 2: Update Unknown Device Driver

Possibly, besides hardware ID, you can get the right driver for Unknown device by updating it in Device Manager. The process of updating a driver is to find the device driver for Other devices.

Update Unknown Device Driver Via Device Manager:

1. Open device manager.

2. Expand Other devices and choose the Unknown devices.

3. Right-click it and select Update Driver Software.

This action will let Windows search the driver in the local disk and online to find a driver for the unknown device.

Using the device manager can to some degree install the right driver for the unknown device. So if this way can help solve unknown device problem, it will be good.

If this cannot help, try to install a compatible device driver from other methods.

4. Choose another option of Browse my computer for driver software.

5. Choose Let me pick from a list of available drivers on my computer. This will show compatible devices drivers and all drivers in the same category as the device.

6. In the compatible hardware list, check Show compatible hardware and you can choose the model to install this driver to replace it for your unknown device.

Data Card Port Devices Driver List

After it is installed, the unknown device error may disappear and the real device may be listed in device manager. If required, you would better restart Windows 10 to take effect.

Data Card Port Devices Driver Update

Update Unknown Device Driver Automatically:

If the device manager cannot solve find a driver for the unknown device, you can try to a professional and safe driver updating tool – Driver Booster. You can use Driver Booster to identify the unknown device and then download or update the driver. Furthermore, Driver Booster is capable of fixing various error code in Device Manager, now that unknown device doesn’t have a driver, you can manage to fix the error code by Driver Booster.

1. Download Driver Booster at first.

2. After installing and running it on Windows 10, hit Scan to find out which drivers are missing, which drivers are incongruent, which drivers are faulty on your PC.

3. Then locate the driver for the unknown device to Update.

4. Here if you are not sure what device driver is causing the unknown device on Windows 10, it is feasible to Update Now to update all the device drivers for Windows 10.

Tips: How to Use Driver Booster to Fix Device Error Codes?

Here if you are encountering device error code 1 or 10 or whatever, you are able to fix the driver error code by Driver Booster.

After Driver Booster scanned for the problematic device drivers, on the left side, click Tools button and then hit Fix device error to let Driver Booster find out what causes unknown device appears in Device Manager.

When the drivers are installed, you can enter the device manager see there is still unknown device under Other devices. In some cases, it is likely that unknown device disappears from Windows 7, 8, 10 Device Manager as Driver Booster has found the driver for the undetected device.

Solution 3: Find Driver by Windows 10 Updates

In order to install the right driver for the unknown device so as to remove the device error, there is another way open to you, namely, finding a driver by checking Windows 10 updates.

1. Go to Start > Settings > Update & Security.

2. Under Windows Update, on the right side, choose to Check for updates.

For some unknown devices, after Windows 10 update, Windows 10 not recognizing the device can be fixed successfully.

Solution 4: Disable Driver Signature

When the unknown device appears in Device Manager, it implies that the device drivers are not recognized or not working on Windows 10. And as you all know, there is a driver signature for every certified driver. But sometimes, you failed to find the driver for the device as Windows 10 can’t allow your PC to install the driver due to the factor of driver signature.

Hence, on the basis of the driver safety, it is worth a shot to disable driver signature enforcement to install the driver for unknown device. May it will fix Windows 10 unknown device error.

Solution 5: Run SFC

After upgrading the Windows 10, more than an unknown device pops up under Other devices. In some sense, other devices unknown device results from the corrupted system files on Windows 10. Therefore, you would better try to run the System File Checker to see if an unknown device will perish from other devices.

1. Type in Command Prompt in the search box and then right click it to Run as administrator.

2. In Command Prompt, input sfc/scannow and then press Enter to activate SFC.

Then SFC will begin file checking and correct the problematic files if possible. You can head to Device Manager to check whether or not the unknown device still shows under Other devices.

Data Card Port Devices Drivers

In a word, you can follow the methods above to fix the unknown device driver error issue on Windows 10.

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