Prolific (Clone) USB Cable Driver Installation
If you purchased a USB programming cable with your radio, chances are it is based on a chip that uses the early Prolific algorithms. While you will see a number of posts that claim these are 'counterfeit' cables, that is probably a sensationalized claim that is based more on propaganda than fact. I suspect that when Prolific first released their drivers for their USB chipset in Taiwan, their code was not proprietary, and cables that work with driver V 3.2 that was released in 2007 and installed in competing chipsets could not be called 'counterfeits'. This demonstration illustrates the importance of cleaning out your old COM Port conflicts, and then rolling back your drivers to versions that may work, and finally how to synchronize the COM port settings between device manager and your programming software.