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The most common problem that our customers encounter with a USB to RS-232 adapter is getting the proper driver installed. The driver must correspond to the chip inside the cable—not to the manufacturer of the cable. For USB to RS-232 chips, there are two primary manufacturers: Prolific and FTDI. Dec 24, 2014 There are a number of Prolific Serial drivers and these have been listed below. There is also an explanation here (USB to RS232 Driver) which also uses a Prolific USB driver. If the Prolific USB to serial drivers below do not work then see the USB to RS232 driver for more information as it uses more than one option. Aug 02, 2018 In the Properties Window, Click on “Driver”. The “Driver Version” must say “3.3.2.102” dated 09/24/08. If not, then the correct driver is not installed. Unplug the USB-To-Serial adapter and run the “PL2303 Code 10 Fix” again, following the directions precisely until you get it right. Fix prolific usb to serial comm port for windows 8, windows 8.1. Download Prolific USB to Serial Driver for Windows 10 7 8 8.1 Vista XP 64/32 Bit. Fix Prolific usb to serial com port for.
Jul 31,2019 • Filed to: USB Drive 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 you 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- The USB driver is outdated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.
Prolific Usb To Serial Driver 3.3.3.114
Solution 1- 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 guarantees 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.
Official solution to Code 10 error
Driver issues reveal themselves in so many ways or through messages such as
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- This device will not start (Code 10)
- There is no driver installed in this device
- 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 suing 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.
![Working Working](/uploads/1/2/4/9/124912041/901170888.jpg)
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 are able to
- Run 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
USB Solution
- Recover USB Drive
- Format USB Drive
- Fix/Repair USB Drive
- Know USB Drive
Active1 year, 5 months ago
I'm trying to use a Gigaware USB -> Serial adapter that worked fine on Windows XP on Windows 8. It's not working and I get
in device manager. It says the drivers are up to date. What should I do?
Hut8Hut8
7 Answers
If this is your adapter - then it is based on Prolific PL2303 chipset and your best bet would be to use the drivers from the chipset manufacturer. But if your adapter contains an old revision of the chip - it is just not compatible with Windows 8:
Windows 8 is NOT supported in PL-2303HXA and PL-2303X EOL chip versions.
Alex P.Alex P.
This tool WILL work if you are receiving the (Code 10) error. Despite all the comments about it not working on Windows 8/8.1, there is a simple way to make it work: Fake PL2303 – how to install on Windows 8.1
Peter Mortensen8,5881616 gold badges6262 silver badges8585 bronze badges
SgaliSgali
You need to downgrade the driver to the 2008 3.3.2.102 version and choose it specifically as per this page:
Or the duplicate answer on Super User page Gigaware USB to serial adapter not working on Windows 8.
I found that this was needed when using the ADAfruit USB-to-TTL adapter cables.
The only issue is that every time you remove the device you will have to go through the same painful exercise as Windows doesn't retain the driver association details.
Peter Mortensen8,5881616 gold badges6262 silver badges8585 bronze badges
user3642011user3642011
![Prolific Usb To Serial Driver Not Working Prolific Usb To Serial Driver Not Working](/uploads/1/2/4/9/124912041/342400304.jpg)
Download this driver from the Windows Update Catalog. Then manually add the driver using Device Manager.
Peter Mortensen8,5881616 gold badges6262 silver badges8585 bronze badges
MikeMike
I also download the driver listed (AMD64_X86-en-20357822_453c563f64689a47c9be3972b95db24900db3798.cab)above from Microsoft and manually added it. Dell openmanage software. You must remove the Svk2pl.inf from the .cab, disable the device, select the .inf file. After you are done the will show up as Gigaware USB to Serial Cable (COMx) x=port. If you move the connection to another USB port you have to make the same change or you will still have the problem. The device works great now. I used the PL203CheckChipVersion.exe to verify my chip version, I am using PL-2303 XA / HXA chip. This tool will not work if you are receiving the (Code 10) error.
Prolific Usb To Serial Adapter
cyarworthcyarworth
The adapter you are referring to is not compatible with Windows 8, and even updating the drivers will not make it work either since it most likely has the old version of the Prolific chipset. A solution would be using an FTDI based USB-to-serial converter which has better drivers and is compatible with Windows 8.
Peter Mortensen8,5881616 gold badges6262 silver badges8585 bronze badges
EugenEugen
I also just had this problem, and I downloaded the 'Windows Update Catalog' after uninstalling and reinstalling driver. I went to Device Manager and updated the driver with the file I downloaded.
It works great now.
Peter Mortensen8,5881616 gold badges6262 silver badges8585 bronze badges
Prolific Usb To Serial Driver 2007
PatrickPatrick
Prolific Usb To Serial Driver Not Working Windows 7
protected by Community♦Jul 28 '15 at 11:25
Prolific Usb To Serial Driver Not Working On Iphone
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