I have a microKEYER II but rather than disconnecting the K3 from it I use a DB9 A/B switch for firmware updates. The K3/P3 is connected to the switch, and the A position is connected to the MKII and the B position is connected to a serial port on the computer (really a COM port on an Edgeport/4).
That way no time is spent re-cabling, and it's just a flip of the switch. I flip to the serial port on the Edgeport every time I use the K3 or P3 utility, which is fairly often as I like to save a new configuration file after I change a menu selection. I found a Belkin DB9 switch on eBay. 73, Jim N7US -----Original Message----- Please carefully go through the steps listed in K3 Utility Help, Troubleshooting, MCU Load Failure. If you are using a different COM port than you were using before, be careful that you've selected the correct new COM port 73 de Dick, K6KR -----Original Message----- I tried to download latest K3 utility version 1.12.10.10 and ended up with dead radio. I tried the help advise and their recommendations ending with still nothing working. I disconnected MicroHAM keyer and the power to K3, connected radio direct to computer with RS 232 outlet direct to COM port, turned power off to radio, reapplied power and tried to reload software and still only flashing TX LED with MCU LD showing without back lit screen. Any suggestion appreciated. Roger, W7VV ______________________________________________________________ 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

