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So no matter how many times you remove the driver files and reboot – the next time you insert the USB-To-Serial adapter, Windows installs the newest non-working version again. The procedure above works, but only temporary. FelixHitz replied on December 1, Larry A Lamar June 19, In the pop-up window, select the baud rate under the Baud Rate and click Send. This article was helpful.

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Find a Dealer Select one: In the Properties Window, Click on “Driver”.

Sorry this didn’t help. PL CheckChipVersion tool program. So, if you change place of connection, you should manually set the driver to 3. How do I change to a different COM setting? Make sure to click “OK” on all screens.

Prolific 3ft USB to Serial Adapter with RS DB-9 Male Connection HX

If you watch the configuration panel, you will see the COM port coming OK, but then switch off because of error The values for each port are. To make sure that the new driver take priority over the other one in Windows 7 right click on the device and go to Uninstall and check ‘Delete the driver software for this device’. Prolific usb to serial converter to Serial Converter Website Design by Alvitr.


Below installer program will remove all of the incompatible drivers — make a change so that Windows can never update the driver without your approval — and install the Version 3. If it offers a prolific usb to serial converter to remove prloific driver, then select to remove the current “bad” driver.

On the next windows, choose the second option “Look for a driver on my computer”. You must follow ever step in the process in exact order.

Main cause of this issue is because the device you own contains a prplific “Prolific” chip China clone. However if you didn’t have a previous driver prolific usb to serial converter that worked – you’ll have to go through the process of removing any PL driver installation programs, the actual driver files, and the information.

USB Serial Adapter Drivers Page

Type A Female; RS side: In summary, this article is for: Click on “Change Settings”. You should now have a list showing all versions of the driver available.

Latest Drivers for Mac 8. Next time, the driver remain to 3. FelixHitz replied on December 1, Sometimes, installing the latest version of drivers solve the t, but in this case, this is the opposite.

If you want to delete it – use the Windows “Uninstall a Program” or “Add or Remove Program” feature prolific usb to serial converter however this will also uninstall the driver itself.


This USB to Serial adapter is ideal for connecting modems, cellular phones, PDAs, digital cameras, card readers and seriaal serial devices to your computer.

USB to Serial USB adapter Cable converter

Uncheck the box that says “Use automatic sttings”. Windows compatibility with plug-and-play installation and hot-swappability help provide seamless use without inconvenient and frustrating device conflicts. Taipei Headquarter 7F, No. If you prolific usb to serial converter previously used the PL with W7 and upgrade to W10, it’s simple because the previous versions of the drivers are still on your computer. That means correct driver version is not installed. Mac G3 or cknverter.

It orolific care, because the old version is now available in the list, and you can proceed as mentioned above.