From there just follow the prompts and you should be up and running in moments. In this post, we’ll look at how to fix Prolific USB-to-Serial driver not working on Windows 10. This package contains the Prolific USB to Serial Controller 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. If you are experiencing any issues, you can manually download and reinstall. 3: Manually Download Prolific USB to Serial Drivers for Windows 11/10. Click Driver in the Windows Properties section. 2: Update Prolific USB to Serial Drivers Automatically. Scroll down to the LPT/ COM port then double click Prolific USB to Serial Comm Port. 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. 1: Update Prolific USB-to-Serial Driver in Device Manager. 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. Indeed, when installing W10, the device driver for PL-2303 is the latest version. 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. Here’s how you can do it: On your keyboard, press the Windows logo + R keys simultaneously to open the Run dialog box. 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. Prolific USB to Serial Controller driver is the software that helps your operating system to communicate with USB Serial Port devices. Driver can auto-download via Windows Update (Windows 7, 8, 8.
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