- #PROLIFIC USB TO SERIAL DRIVER ISSUES INSTALL#
- #PROLIFIC USB TO SERIAL DRIVER ISSUES DRIVERS#
- #PROLIFIC USB TO SERIAL DRIVER ISSUES UPDATE#
- #PROLIFIC USB TO SERIAL DRIVER ISSUES MANUAL#
NOTE: Also read Windows Update overwrites my USB2SER driver. Windows will return to the Driver Properties view when the installation is completed. Select "Prolific USB-to-Serial Comm Port Version 3.3.11.152 ()", then click "Next".
#PROLIFIC USB TO SERIAL DRIVER ISSUES DRIVERS#
Click "Update Driver", then "Browse my computer for driver software".Ĭlick on "Let me pick from a list of device drivers on my computer". This dialog should open:ĭouble Click on "Prolific USB-to-Serial Comm Port (COMx)" to display the Properties.
In the search results list, click "Device Manager". If connection problems persist or you get errors such as Error reading serial. The easiest method to open Device Manager is to go to Windows Start, and in the search box, type "Device Manager". After installation of the USB driver as per the instructions, attach the. Perform the remaining steps with the USB to Serial device plugged in to your selected USB port. Unzip and run the installer, "PL2303_Prolific_DriverInstaller_v1210.exe".
#PROLIFIC USB TO SERIAL DRIVER ISSUES INSTALL#
If any other version of the driver is installed, follow these instructions to install the correct version. Prolific USB to Serial Comm Port Version 3.3.11.152Ĭheck the driver version using Windows Device Manager. This issue is caused by the installation of an incorrect driver by Windows when it "searches the internet for a driver." The correct driver version for the USB to Serial Adapter is: If you still have a problem, you may try this procedure to revert to a previously known working driver. NOTE: This issue has been resolved by Prolific.
#PROLIFIC USB TO SERIAL DRIVER ISSUES MANUAL#
Also, the PL2303 Driver Manual will provide more information about compatibility of chip versions with Windows OS Versions, including a comprehensive comparison chart. You can DOWNLOAD THIS UTILITY from Prolific to identify your chip. Searching automatically for an update does not work & when I manually select the driver that I have, it comes with the comment that the correct driver is installed - but still not working. IMPORTANT: Driver version 3.8.12 does not support older Prolific chip versions on Windows 10 (and 8/8.1). Prolific USB-Serial As you can see the driver is installed but with an exclamation mark to indicate a problem.
Windows Update should install this version going forward.
As of March 2017, after ongoing communication with the engineers at Prolific, the issue may be remedied with Driver VER-3.8.12.0 and higher. From there just follow the prompts and you should be up and running in moments.UPDATE: This issue is caused by the USB to Serial Comm Port Driver. What you need to do after installing the older drivers is go to the properties for the device in your device manager, go to Update Driver Software, Browse My Computer, then Let Pick from a List and select the older version of the driver and hit next. In my case I didn’t even know I had a knock off but I downloaded the older drivers and installed them and voila, I was up and running!Īnd just another quick tip, since if you’re here you’ve probably already installed the newer drivers and your system will default to those each time you try to plugin the device. Warning Letter on Counterfeit Products (Please read) Part. Prolific provides perfect solution to connect your legacy peripherals and application to any USB host platform. With a bit more digging I found out that this was a common error for knock-off Prolific chips as in recent driver versions they have been blocking cloned or pirated chips. Prolific offers complete USB to Serial/UART/RS232 and USB to Printer interface bridge solution for Windows, Mac, Linux, and Android platform. However I could not get it working on any of my personal computers or even my work computer.Īfter receiving the same error on each machine I started to think it wasn’t the device nor the computer but the drivers. I recently dug an old PL2303MDL programmer out of a tackle box of electronics and tried to get it working so I could flash some Sonoff devices with tasmota firmware.