I'm doing firmware updates this weekend, and my KX3 and PX3 went fine after installing the device driver using the KXUSB cable and a laptop running Windows 8.1 Pro 64-bit. However, I'm trying to use the same laptop with an earlier KUSB cable to update my K3 and P3. The cable is one using the Prolific chip instead of the FTDI chip. My P3 utility program says that the COM port is closed and I can't scan for vacant COM ports. However, my computer device manager says it's hooked up to a Prolific USB to serial adapter on COM5. I've tried installing the driver twice as the USB to Serial Adapter page in the utility Help section suggests. This laptop has only one USB port and I'm using it rather than a hub.
I've successfully used this KUSB with a different laptop running Windows 7 64-bit, but unfortunately my wife has it with her on a month-long trip to Scotland. Any suggestions would be appreciated. 73, ​ ​ Dennis L Haarsager, ​N7DH​ ______________________________________________________________ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:[email protected] This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html Message delivered to [email protected]

