- #PROLIFIC USB TO SERIAL COMM PORT DRIVER PROBLEM INSTALL#
- #PROLIFIC USB TO SERIAL COMM PORT DRIVER PROBLEM DRIVERS#
- #PROLIFIC USB TO SERIAL COMM PORT DRIVER PROBLEM UPDATE#
- #PROLIFIC USB TO SERIAL COMM PORT DRIVER PROBLEM DRIVER#
- #PROLIFIC USB TO SERIAL COMM PORT DRIVER PROBLEM MANUAL#
#PROLIFIC USB TO SERIAL COMM PORT DRIVER PROBLEM DRIVER#
You may get the old working driver from one of the chinese vendors in Ebay (not available from official Prolific Channels).ī) Remember to use always the same USB port to connect the USB-to-RS232 cable to your PC. Installation must be done when the PC is NOT connected to the web, to avoid the automatic installation of the last Windows 10 non compatible version of the driver.
#PROLIFIC USB TO SERIAL COMM PORT DRIVER PROBLEM INSTALL#
In my case the driver version 3.24.25.218() works perfectly.Ī) Install in your computer a working old version of the driver. A possible solution, working under Windows 10, consists of forcing the system to use an old version of the driver. If you have problem, you can always restart the process from STEP 1.This is a well know problem of many old Prolific devices, including some chinese fakes (see the Prolific web site for details). PL2303 GL works with this 5.2.1.0 driver in Windows 11.
#PROLIFIC USB TO SERIAL COMM PORT DRIVER PROBLEM UPDATE#
Driver version 3.8.40 does not work, you need to update the driver to an older version. When trying to connect to IS02, the Profile Editor software will show the USB driver version on the Communication Error screen. This driver version 3.8.40 does not work with IS02 in Windows 11. This driver version 3.6.81 works with IS02 in Windows 11. Windows will revert the driver back to the non-working version when any of such USB ports is used.
#PROLIFIC USB TO SERIAL COMM PORT DRIVER PROBLEM DRIVERS#
![prolific usb to serial comm port driver problem prolific usb to serial comm port driver problem](https://lasopanfc173.weebly.com/uploads/1/2/5/4/125465989/283416672.jpg)
Also it is important that you always use one dedicated USB port on the PC for IS02 devices.
![prolific usb to serial comm port driver problem prolific usb to serial comm port driver problem](https://odlopte.weebly.com/uploads/1/2/7/7/127716068/feet-morning-adventure-camping_1_orig.jpg)
The key point is to install the old driver and use “Device Manager” to update to use the old driver. The following steps describe the whole process. If you get a new Windows 11 computer or have upgraded to Windows 11, you need to manually install USB driver and use “Device Manager” to setup the driver.
![prolific usb to serial comm port driver problem prolific usb to serial comm port driver problem](http://www.gorse.ca/crdarea/W92_pasted_14.jpeg)
Windows 11 USB default driver DO NOT work for Inspirstar devices.ĭO NOT UPGRADE PC from Windows 10 to Windows 11 if not very necessary. After the new driver is installed, the driver version will be 3.9.1. Before it’s available from Windows Update, this new driver can be downloaded from here link ( After downloading this file, follow the instructions on the screen, and choose to Run Anyway if you are asked whether to continue. We expect Windows 11 to use this new driver version in the next Windows update.
#PROLIFIC USB TO SERIAL COMM PORT DRIVER PROBLEM MANUAL#
The IS02 devices shall work when plugged into a Windows 11 computer without any manual driver update.Ī new driver version has been released to fix the issue on the previous release for Windows 11. The new working driver is now included in the Windows 11 update.
![prolific usb to serial comm port driver problem prolific usb to serial comm port driver problem](https://images-na.ssl-images-amazon.com/images/I/51ixxXBitsL._SL1200_.jpg)
*Except it is old IS02BA unit AND your USB adaptor was old Gen1. If you plug in Inspirstar IS02 devices to your Windows 10 computer for the first time, Windows 10 will automatically install USB driver for the device and it should work instantly. Windows 10 default USB driver works for all Inspirstar IS02 devices*.