Prolific usb to serial driver 340 install#
Prolific usb to serial driver 340 drivers#
Prolific usb to serial driver 340 update#
Prolific usb to serial driver 340 code#

To avoid that, a recent turnaround exist and has been published by Microsoft. Each time you turn your computer off, the latest driver is reloaded due to windows auto-update (or if you unplug and plug again The solution for old PL-2303 HXA/X : use a driver release older than 3.4.Įdit: The procedure above works, but only temporary. Tested on W10 family and pro, 32/64 bits. Once manually set, the device driver remain in the 3.3 release. It don't care,īecause the old version is now available in the list, and you can proceed as mentioned above. If you watch the configuration panel, you will see the COM port coming OK, but then switch off because of error 10. But, as soon as you plug the device on USB port, you W10 will revert to the latest version (3.6). On mine, I have two programs (32 and 64 bits) called 'PL-2303 WIN7 Driver Installer.exe'.

Prolific usb to serial driver 340 install#

If you don't have the old versions of drivers, you can tried to install them from the minidisc provided with your product. I have tried with 3.3.2.102 and 3.3.3.114 and both works with old PL-2303 HXA/X hardware.

Prolific usb to serial driver 340 code#

Later version, like 3.4 or 3.6 report error code 10. You should select the old 3.3 (from 2009). Prolific USB-to-Serial Comm Port Version: 3.6.78.350 Prolific USB-to-Serial Comm Port Version: 3.4.48.272 Prolific USB-to-Serial Comm Port Version: 3.3.3.114 You should now have a list showing all versions of the driver available. Another windows appear, and select the bottom option: On the next windows, choose the second option 'Look for a driver on my computer'. To downgrade, use the configuration panel, choose COM and LPT and right click: the first choice shouldīe 'update driver' (or something similar: sorry, but I've the French version, and hope my translation is understandable).

Prolific usb to serial driver 340 drivers#

If you have previously used the PL-2303 (with W7) and upgrade to W10, it's simple because the previous versions of the drivers are still on your computer. The latest version doesn't work anymore with old hardware, and you need to downgrade the driver. Sometimes, installing the latest version of drivers solve the problem, but in this case, this is the opposite.

The version driver (ser2pl.sys or ser2pl64.sys) should be something like 3.6.78.350īut this one doesn't work anymore with old PL-2303 hardware. You can check it, using the configuration panel: watch the COM and LPT section, you should have the 'Prolific USB-to-Serial Comm (COM X)'. Indeed, when installing W10, the device driver for PL-2303 is the latest version. May be, a solution will be to use the old W7 drivers version into W10. I don't want to send my devices to trash because they are too old (less than a year !) to be supported by W10. Prolific's guys are fun when they said : ' Prolific recommends to use It's a shame from Prolific to not support this devices, because they are still used (my LED badges are less than a year old,Īnd use EOL PL-2303 HX). This is clear: if your device is using an old chip version of PL2303, the drivers not works with W10 (and W8).Īs many people, you probably upgrade directly from W7 to W10, and sure, don't know that this problem was already present with W8. Windows 8/8.1/10 are NOT supported in PL-2303HXA and PL-2303X EOL (End Of Life) chip versions.

Prolific usb to serial driver 340 update#

Of course, you can try to manually update the driver at Prolific site:īut, look carefully on this page and you will read an important notice in RED : This work fine, but looking at the configuration panel, you will then notice that there is anĮrror code 10 and the driver is not working properly. You plug the device into USB, it is well recognized by W10 and it try to load the Prolific driver.

All this devices use a PL2303 to provide a connection to an USB port, but inside, they are RS232-like interface build (and appear as a COM port in your operating system). Myself, I've the same problems with scrolling LED Badges, and USB to COM dongles. There is lot's of people reporting problems with W10 and Prolific devices (based on popular PL2303 adapter).