>From the microKEYER Manual: > If your radio includes upgradeable firmware, > DO NOT perform any upgrade through microKEYER.
That said, with any microHAM interface you must set the radio type to "None" (Ports | CAT | Set), check the "Disable router queries" box, check both "Forward autoinformation to CAT port" boxes, and set the 2nd CAT port to "None" before attempting an firmware update. After all of that you still need to keep a "real" serial port or a generic USB to RS-232 adapter for emergencies. > -----Original Message----- > From: [EMAIL PROTECTED] > [mailto:[EMAIL PROTECTED] On Behalf Of Eric > Sent: Tuesday, September 23, 2008 4:12 PM > To: Elecraft@mailman.qth.net > Subject: [Elecraft] MCU LD > > > > OK, > I tried to load new firmware to the K3, not using > the USB-serial > cable, but thru the micro keyer interface which is > normally connected > to the K3. At first my PC 'sees' the K3 but during > upload something > went wrong and now I have a K3 displaying MCU LD and a > blinking TX > LED. > Anyone has a lead here? > vy 73 Eric PA3CEV _______________________________________________ Elecraft mailing list Post to: Elecraft@mailman.qth.net You must be a subscriber to post to the list. Subscriber Info (Addr. Change, sub, unsub etc.): http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/subscribers.htm Elecraft web page: http://www.elecraft.com