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. 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. Under the General tab, click Print Test Page. Be sure to select 'Printer Properties' and not 'Properties', or you will not see a Print Test Page button.
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. Printing A Windows Test Page Using Windows 10 Open 'Devices and Printers' right-click your printer click 'Printer Properties'. Driver can auto-download via Windows Update (Windows 7, 8, 8.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. Windows Vista, 7, 8, 8.1 Certified WHQL Driver Compatible with Windows 2000SP4 & Server2003 Download File: PL2303ProlificDriverInstallerv1.12.0.zip. Windows XP (32 & 64-bit) WDM WHQL Driver: v2.1.51.238 () This is the Prolific website read on the driver I installed: PL2303 Windows Driver Download. Installer version & Build date: 1.12.0 () (For PL2303 HXA, XA, HXD, EA, RA, SA, TA, TB versions) This is the Prolific website read on the driver I installed:ĭownload File: PL2303_Prolific_DriverInstaller_v1.12.0.zip Drivers Library To find the latest driver for your computer we recommend running our Free Driver Scan. From there just follow the prompts and you should be up and running in moments. July for the ones from the download page) and so Windows prefers it over them. 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. The problem is probably that the non-working driver is the newest (September 2021 vs. I had only one other entry, a "ser2pl.inf" version " 3.8.40.0".ĭisconnect the device, and "pnputil /delete-driver oemXY.inf" with the INF file you located in the previous step.Ĭonnect the device again, and it should work, at least, it does for me.
Then "pnputil /enum-drivers", and in the output look for Prolific drivers other than the ones from the previous step.
AccessPort 1.37, COM port terminal software for Windows, AccessPort137.zip, 441KB. It will add the two driver packages to the driver store and tell you what oemXY.inf files it has assigned to them. Free Useful Tools and Diagnostics Software for Serial Communication. Product: Prolific USB-to-Serial Comm Port (COM1) Hardware Class: USB. Prolific USB-to-Serial Comm Port (COM1) - Driver Download.
What I did is this:įirst install the downloaded driver by unpacking the zip file and "pnputil /add-driver *.inf /subdirs /install" (the /install is probably not necessary) from the extracted "Win11_DCHU" directory. To find the latest driver for your computer we recommend running our Free Driver Scan. 0:08 Lv0 demonstration Find Prolific USB to Serial Comm Port.
Getting it installed is a bit tricky, it seems. How to Download and Install the Driver on a Linux Platform 3 exe and afterwards I. Hardware platforms affected : HP EliteDesk 705 G4 Microtower PC, HP EliteDesk. There is a working driver at, a bit down the page listed as "DCHU (for PC Vendors)".