Svend: Try removing the power plug from the back of the K3, wait about a minute, and also close the K3 Utility. Remove all connections from the back of the radio except the DE-9 serial cable that is connected to the K3 Utility. Then start the K3 Utility and on the Port tab chose the COMM port that is connected to the K3. Leave the K3 Utility on the Port tab. It should start polling, you'll see little messages at the bottom status line. If the K3 Utility pops up a warning dialog (before you apply power to the K3) that says that it has found a K3 in boot load state, you probably have selected the wrong COM port; the COM port you have selected is connected to some other device that is sending back everything that is sent to it. Some laptop modems do that, some defective cables do that.
Plug the K3's power plug back in and press the power button to turn the radio on. It should show MCU LD in the LCD screen and the back light will be dark and only then should you see a K3 Utility warning popup that a K3 has been found and its speed is 38,400 bps. Once you have that, go to the firmware tab and select "Send all Firmware to K3". See the K3 Utility Help text for the Port tab to see the expected sequence of screens. If the K3 Utility doesn't get responses from the K3 it will continue to poll. It could be a cable, the PC's USB port, or possibly the KIO3 in the K3. Usually it's a cable issue or an incorrect COM port choice. What I really think has happened is that the MCU loader is in some state that prevents it from responding. A full power off reset should correct the issue and it will go into the state where firmware can be loaded. There is a trouble shooting section in K3 Utility Help that contains every resolution we've ever heard of. Look for "Troubleshooting USB to Serial Adapters". There's also a description of what to expect in the Help page for the Ports tab. If you have continued problems, contact k3supp...@elecraft.com; they'll help isolate the issue with you. Dick, K6KR -----Original Message----- From: elecraft-boun...@mailman.qth.net [mailto:elecraft-boun...@mailman.qth.net] On Behalf Of Svend Spanget Sent: Saturday, October 24, 2009 6:28 PM To: Elecraft@mailman.qth.net Subject: [Elecraft] K3 offline :-( I can't load the firmware. The loader (1.2.9.30) keeps responding: MCU firmware file hmcu0344.hex verified Sending firmware file hmcu0344.hex to MCU Send MCU firmware failed at load address x0800 MCU firmware load failed The display reads MCU LD and the red TX LED is blinking... Is this a hardware failure? Vy 73 de Svend, OZ7UV ____________________________________________________________ TDC Bredbånd for 0 kr. - Spar 695 kr. Se http://tdc.dk/freemailtilbud/ Denne mail er sendt via Mail på TDC Online - Læs mere om TDC's mailtjeneste på http://mail.tdconline.dk/ ____________________________________________________________ ______________________________________________________________ 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 ______________________________________________________________ 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
