This will happen if K4 ACC Pin 8 (PWR ON) is being held to ground by incorrect cabling to external devices.
Disconnect any cable from K4 ACC and the rig should power on and off and reboot itself properly. With proper cabling, no such disconnect is required to update the K4 firmware. 73, Bob, N6TV On Sun, Aug 29, 2021 at 1:10 AM Ray Spreadbury via Elecraft < elecraft@mailman.qth.net> wrote: > Well I downloaded this new release and installed it as instructed on the > Elecraft Website. It reported SUCCESS after each module and then the K4D > went into a lock up with all 4 LED’s lit. After waiting 10 mins with no > change, I restarted the K4D with the same result – blank screen with all 4 > LED’s lit. > Any ideas what to do next please? > 73 > Ray G3XLG > > Sent from Mail for Windows > > ______________________________________________________________ > Elecraft mailing list > Home: http://mailman.qth.net/mailman/listinfo/elecraft > Help: http://mailman.qth.net/mmfaq.htm > Post: mailto:Elecraft@mailman.qth.net > > This list hosted by: http://www.qsl.net > Please help support this email list: http://www.qsl.net/donate.html > Message delivered to n...@arrl.net ______________________________________________________________ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html Message delivered to arch...@mail-archive.com
