Fake PL2303 – how to install on Windows 7 / 8.1 / 10

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.

Putty is constatly giving an error „Unable to open connection”. In addition in the device propperties I found an error

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.

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