I recently bougth two USB-to-UART converters with Prolific PL2303 chip inside. I found them on Aliexpress in a really good price (0.89$ each).
After waiting 3 weeks, they finally arrived.
USB-to-UART converters with pl2303 chips.

But unfortunately I didn’t read enough about converters with these chips before buying. As it turned out converters are recognized in Windows 8.1 as Prolific-to-Serial Comm Port but marked with yellow warning sign.
Windows Device Manager
Putty is constatly giving an error „Unable to open connection”. In addition in the device propperties I found an error

This device cannot start. (Code 10)
A device which does not exist was specified.
Error code 10 of fake pl2303

Error code 10.

A quick investigation gave an unpleasant anwser – PL2303 chips are fake!
In the newest drivers Prolific blocked all fake chips and the driver in Windows 8.1 is also blocking my fake pl2303.
But there is a solution – you have to install old drivers – version 3.3.2.105.

IO-Cable_PL-2303_Drivers-Generic_Windows_PL2303_Prolific

Simply install drivers, then go to Device Manager -> Right click on Prolific-to-Serial Comm Port and select Update Driver Software….
In Update Driver Software window chose: Browse my computer for driver software -> Let mi pick from list of devices on my computer, Select Prolific USB-to_Serial Comm Port version 3.3.2.105 model [10/27/2008] from model list and click next.

USB-to-Serial Comm Port Driver selection.

USB-to-Serial Comm Port Driver.

The driver will install and your fake pl2303 Prolific converter will be ready to use ;)

Related links:

http://7er.pl/showthread.php/22428-Sterowniki-do-RS232-PROLIFIC-PL2303-Win7-x64
http://grylewicz.pl/kabel-usb-rs232-prolific-pl2303-i-blad-kod-10/

3 Thoughts on “Fake PL2303 – how to install on Windows 8.1

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