[Elecraft] k3 MCU flashing TX lockup

[Don Wilhelm]

Gary,

K3 utility sets the data rate of the K3 automatically, so that is not 
the problem.  Look first at your computer (reboot), and your serial 
cable (try another cable if possible).

73,
Don W3FPR

Gary Gregory wrote:
> I have been using the K3 on PSK31 and I suspect the K3 is set for 
> 19200 kbs, if so, I am guessing this is why the utility program cannot 
> connect?
>
> I have tried many times to reconnect and reset but no luck as yet.
>
> Thanks,
> Gary
> I just got lost in thought............. It was unfamiliar territory
>
>
> 2008/12/13 Gary Gregory <rfenabled at westnet.com.au 
> <mailto:rfenabled at westnet.com.au>>
>
>     Hi Guy's
>
>     I am using a serial cable, not had any problems b4 with downloads.
>     Tried to download latest Beta when it all went south.
>
>     Repeated on/off has not helped so far.
>
>     Let me get this correct in my head.
>
>     1. turn off linear power supply.
>     2  wait 10 seconds.
>     3  Reboot windows xp pro
>
>     Should I start the utility 1st?...(I am using latest version) or
>     the radio?
>
>     I am seeing the radio come on when I press the button and the
>     led's are bright. If I keep holding the power button the radio
>     comes on, no backlight just flashing red tx light and MCU LD on
>     the display.
>
>     Thanks guys.
>
>     Gary
>     I just got lost in thought............. It was unfamiliar territory
>
>
>     2008/12/13 Don Wilhelm <w3fpr at embarqmail.com
>     <mailto:w3fpr at embarqmail.com>>
>
>         Gary,
>
>         If possible, use a real serial port instead of a USB/serial
>         adapter.
>         If you are using a USB/serial adapter, plug it into a native
>         USB port, not into a hub.
>         Close K3 Utility and reboot the computer.
>         Remove the power cable from the K3 for at least 5 seconds
>         Hold the K3 power switch down for at least 10 seconds
>         Open K3 Utility and "Send All New Firmware".
>
>         If that does not cure things, check your computer serial
>         connections - try a new cable, etc.
>
>         73,
>         Don W3FPR
>
>
>         Gary Gregory wrote:
>
>             I am hoping somebody can help solve this.
>
>             I attempted to load the latest Beta software when suddenly
>             the download failed.
>
>             Unable to communite with the K3 from the loader (latest
>             version) and the power off to force a reset and download
>             results in "Unable to communicate with K3" error msg appears.
>
>             The flashing yellow light appeared first, now
>             extinguished, just the flashing red Tx light, unlit screen
>             and MCU LD in the display.
>
>             Anyone have any suggestions to try next?
>
>             73's
>             Gary
>
>
>
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