You are not allowed to use or distribute the source code of this driver unless you obtain a commercial license or you have a commercial license to the driver or software product that this driver was extracted from. If your PL2303 does not have a VBUS_IN terminal, this terminal will be put at the top. Īnd refer to the pinout in the following image: The latest drivers for Prolific PL2303 USB to Serial Port cards are available here: Prolific Technology. So it is a vital part of driver installation process.Ģ) Prolific USB-to-Serial Comm Port Version 3.3.3.114 – (Download) In case that the driver is not included in this file, Windows will not find the driver and you will not be able to install it. When installing the driver of this company, you need to include a file called COM32.PROP to the INF file. In all cases, when I am trying to list the COM port using the above command in the cmd prompt, I get the following error messages: However, all of them (except Method 5) didn’t work. I tried the above-mentioned methods for installing the driver mentioned in Prolific documentations. * This driver may be downloaded from USB-to-Serial Ports page.Ħ) All the COM port devices (Serial COM ports) can be listed by typing the following command in command prompt :
Here is what I found on this site: USB-to-Serial Portĥ) Install the driver (I downloaded the com32.inf file and installed it through the Device Manager as shown above). Prolific Usb-to-serial Comm Port Version 3.3.3.114 Download
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