That means correct driver version is not installed. Another windows appear, and select the bottom option: Hope this information helps and let us know the status of the issue we will be glad to help you. Prolific also prohibits the distribution of any PL drivers including download links without written permission from Prolific. Prolific advices end-users to only purchase vendor branded cable products with company name contact information for service and support.

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Hi, I’m afraid that there is no solution Good Way Technology Co.

USB Serial Adapter Drivers Page

You must follow ever step in the process in exact order. However if you didn’t have a previous driver installed that worked – you’ll have to go through the process of removing any PL driver installation programs, the actual driver files, and the information. Close the Sirf Prolific usb adapter software. This article was not helpful.

Prolific Technology Inc. (USB to UART / RS / Serial)

Website Design by Alvitr. Reply Did this solve your problem?

Hey, but I can’t do that myself!!! If your adapter was working prior to going to Windows Update, you can “roll back” to the previous installed driver and all will be well once again. Or contact our worldwide distributors for other cable product reference and chip samples. prolific usb adapter


Next time, the driver remain to 3. Prolific will take proper and severe actions to cease and confiscate these counterfeit products.

Yes No Sorry this didn’t help. Tell us about your experience with our site. The latest version doesn’t work anymore with old hardware, and you need to downgrade the driver.

PL CheckChipVersion tool program. How do I fix it? Hope this information helps and let us ptolific the prolific usb adapter of the issue we will be glad to help you.

This site in other languages x. It don’t care, because the old version is now available in the list, and you can proceed as mentioned above. KB I have tested it prolific usb adapter it work fine. So no matter how many times you remove the driver files prolific usb adapter reboot – the next time you insert the USB-To-Serial adapter, Windows installs the newest non-working version again.

So, if you change place of adaprer, you should manually set the driver to 3. Even vendors selling their “USB to Serial” adapters are baffled.


Then run the installer again to install the correct driver. Run the installer program. And Windows 8, 8.

Prolific USB Adapter Drivers

The “Driver Version” prolific usb adapter say “2. Launch this program, it will install the driver. Only bit driver I have ever found that works with all the “Prolific” adapters is Version 3. It’s a tool named wushowhide. Or you may get no error at all, but your device will still not work.

Pgolific recommends following vendor cable brands: I have tested it and it work fine. StanP12 replied on December 16, Prolific usb adapter reply to FelixHitz’s post on December 1,