Step 1:

Download the driver file and extract it to your hard driver where you can find it

FT232R USB UART Driver Download

Step 2:

You first need to uninstall the incorrect drivers on your computer. In Windows, go to Control Panel then to Device Manager


Now press the delete button on your computer and it will ask for confirmation.


Collapse the Ports menu and now click on the USB controller at the bottom of the list.


Now you need to uninstall the existing USB Serial Convertor.


Disconnect the USB cable from your PC to KMX1 or KMX2

reconnect the USB cable from your PC to KMX1 or KMX2

A new yellow flagged item will appear FT232R USB UART

Right Click on FT232R USB UART

Select Update Driver Software



Now you need to find where you extracted the drivers from the file you downloaded above and point the software to the directory.


The driver software for USB Serial Converter has been installed


The USB Serial Convertor is now installed. Next you have to install the port. If you are old enough to remember software modems then you will recall that it was done in the same manner.


The yellow flagged item will have changed name to USB Serial Port

Right Click on USB Serial Port
Select Update Driver Software



The driver software for the Port is in the same directory where you had the other drivers which you had just installed.


The Serial Port will now install and that will be the final installation. There should be no yellow flags any more.




See the updated version and UART driver here.


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FT232R USB UART Driver, 9.1 out of 10 based on 226 ratings

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About Tracey Brown

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