I use a Mac, too. If the cable failed during a download, the firmware could be corrupted.
I would try forcing the firmware load as described in the manual. I could be wrong, but this smells like a problem somewhere between the KX3 Utility and the data port on the KX3. wunder K6WRU Walter Underwood CM87wj http://observer.wunderwood.org/ (my blog) > On Dec 9, 2018, at 7:11 PM, Dave Sublette <[email protected]> wrote: > > OK -- time for a confession. I'm updating using a MAC. I don't think that > has anything to do with the problem. It has worked perfectly for four years. > Doesn't say that something couldn't have died. But the MCU LD and flashing > Tx LED on the KX3 says there is a firmware error and I don't think a failed > interface cable or computer would cause that. > > I'm not a computer guru. It will be interesting to see how this plays out. > Thanks to all for helping. This is a knowledgeable and friendly group to > deal with. > > Dave > > > > On Sun, Dec 9, 2018 at 10:04 PM Dick Dievendorff <[email protected] > <mailto:[email protected]>> wrote: > It might be the KXUSB. Try different a USB hub on the computer if you have a > choice, or another computer if available. > > Sometimes windows updates change the COM port number, try the steps in Kx3 > utility help for finding the right COM port. It might have been a while since > you last used the utility. > > > 73 de Dick, K6KR > > > On Dec 9, 2018, at 18:52, Dave Sublette <[email protected] > > <mailto:[email protected]>> wrote: > > > > It is not looking good, folks. The RS232 adapter which drives the KX3 is > > not flashing any more as it usually does. The KX3 Utility returns "KX3 not > > responding" when I test the link. All cables are properly connected. It's > > been working perfectly until earlier this evening. > > > > I think it is due for a trip back to Elecraft. I will call them tomorrow. > > > > Thanks for the help. I did find the Help column and the troubleshooting , > > etc.... > > > > I had already done all of those steps and got nothing but the "not > > responding" error. > > > > I'll let everyone know what happens. > > > > 73, > > > > Dave, K4TO > > > > On Sun, Dec 9, 2018 at 8:32 PM Walter Underwood <[email protected] > > <mailto:[email protected]>> > > wrote: > > > >> I’m sure you have checked, but I would open it up and make sure the ribbon > >> cables are fully seated. Then I’d check the cables to the PC. Probably > >> restart the PC, too. > >> > >> wunder > >> K6WRU > >> Walter Underwood > >> CM87wj > >> http://observer.wunderwood.org/ <http://observer.wunderwood.org/> (my blog) > >> > >>> On Dec 9, 2018, at 4:58 PM, Dave Sublette <[email protected] > >>> <mailto:[email protected]>> wrote: > >>> > >>> When I bring up the KX3 utility, there is no tab labeled Help or > >>> Troubleshooting or MCU. I now get a "KX3 is not responding" message. > >>> > >>> Dave > >>> > >>>> On Sun, Dec 9, 2018 at 6:57 PM <[email protected] > >>>> <mailto:[email protected]>> wrote: > >>>> > >>>> I'd recommend the steps described in KX3 Utility Help, Troubleshooting, > >> MCU > >>>> Boot Loader. > >>>> > >>>> 73 & Good Luck! > >>>> Dick, K6KR > >>>> > >>>> > >>>> -----Original Message----- > >>>> From: [email protected] > >>>> <mailto:[email protected]> < > >> [email protected] <mailto:[email protected]>> > >>>> On > >>>> Behalf Of Dave Sublette > >>>> Sent: Sunday, December 9, 2018 15:04 > >>>> To: Elecraft Discussion List <[email protected] > >>>> <mailto:[email protected]>> > >>>> Subject: [Elecraft] KX3 has died > >>>> > >>>> I believe my KX3 has died in the past 30 minutes. It was operating with > >>>> N1MM prior to that. > >>>> > >>>> I went to the support page at Elecraft.com. > >>>> > >>>> I downloaded the latest KX3 Utility. > >>>> > >>>> I started the Firmware upgrade process. > >>>> > >>>> Initially the message said my KX3 was missing some files and to download > >>>> the > >>>> latest firmware. I did that without any trouble. > >>>> > >>>> When I went to transfer the firmware to the KX3, I got a message that > >> said > >>>> "KX3 failed to enter firmware load mode" (or something like that). > >> Further > >>>> instructions said to remove power, power back up and try again. > >>>> > >>>> Same result. > >>>> > >>>> Tried the "force firmware upgrade" by holding the Band- and ATU Tune > >>>> buttons down for 10 seconds. The firmware load failed again -- same > >> error > >>>> "KX3 failed to enter Firmware load mode". > >>>> > >>>> Meanwhile the front panel of the KX3 showed " MCU LD" during the entire > >>>> time. > >>>> > >>>> The com port tested good, using the KX3 utility. > >>>> > >>>> I don't know what else to try. > >>>> > >>>> Looks like the next step is to contact Elecraft support. > >>>> > >>>> Any thoughts? > >>>> > >>>> Dave, K4TO > >>>> > >>>> ps -- I think the KX3 is just pouting because I have ordered a new K3s > >> :-) > >>>> ______________________________________________________________ > >>>> Elecraft mailing list > >>>> Home: http://mailman.qth.net/mailman/listinfo/elecraft > >>>> <http://mailman.qth.net/mailman/listinfo/elecraft> > >>>> Help: http://mailman.qth.net/mmfaq.htm <http://mailman.qth.net/mmfaq.htm> > >>>> Post: mailto:[email protected] <mailto:[email protected]> > >>>> > >>>> This list hosted by: http://www.qsl.net <http://www.qsl.net/> > >>>> Please help support this email list: http://www.qsl.net/donate.html > >>>> <http://www.qsl.net/donate.html> > >>>> Message > >>>> delivered to [email protected] <mailto:[email protected]> > >>>> > >>>> > >>> ______________________________________________________________ > >>> Elecraft mailing list > >>> Home: http://mailman.qth.net/mailman/listinfo/elecraft > >>> <http://mailman.qth.net/mailman/listinfo/elecraft> > >>> Help: http://mailman.qth.net/mmfaq.htm <http://mailman.qth.net/mmfaq.htm> > >>> Post: mailto:[email protected] <mailto:[email protected]> > >>> > >>> This list hosted by: http://www.qsl.net <http://www.qsl.net/> > >>> Please help support this email list: http://www.qsl.net/donate.html > >>> <http://www.qsl.net/donate.html> > >>> Message delivered to [email protected] <mailto:[email protected]> > >> > >> ______________________________________________________________ > >> Elecraft mailing list > >> Home: http://mailman.qth.net/mailman/listinfo/elecraft > >> <http://mailman.qth.net/mailman/listinfo/elecraft> > >> Help: http://mailman.qth.net/mmfaq.htm <http://mailman.qth.net/mmfaq.htm> > >> Post: mailto:[email protected] <mailto:[email protected]> > >> > >> This list hosted by: http://www.qsl.net <http://www.qsl.net/> > >> Please help support this email list: http://www.qsl.net/donate.html > >> <http://www.qsl.net/donate.html> > >> Message delivered to [email protected] <mailto:[email protected]> > > ______________________________________________________________ > > Elecraft mailing list > > Home: http://mailman.qth.net/mailman/listinfo/elecraft > > <http://mailman.qth.net/mailman/listinfo/elecraft> > > Help: http://mailman.qth.net/mmfaq.htm <http://mailman.qth.net/mmfaq.htm> > > Post: mailto:[email protected] <mailto:[email protected]> > > > > This list hosted by: http://www.qsl.net <http://www.qsl.net/> > > Please help support this email list: http://www.qsl.net/donate.html > > <http://www.qsl.net/donate.html> > > Message delivered to [email protected] <mailto:[email protected]> ______________________________________________________________ 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]
