[Elecraft] K3: Unable to update firmware by RS-232 port

[Don Wilhelm]

Joe,

Have you tried the steps in the "Forcing a Firmware Download" on page 44 
of the K3 manual?
Before doing that, how about closing K3 Utility and reboot the computer 
- sometimes that alone works wonders at cleaning things up.

73,
Don W3FPR

Joe Malloy wrote:
> Hi, Matt, I'm not using a USB hub, my system used to work with a 
> straight cable from a com port to the K3 or with the Elecraft/Prolific 
> USB to rs-232 cable but no go, no matter which of four port I have.  I 
> also have checked for proper mating of the KIO3 but no go.  It still 
> confounds me why it worked for over a year and then stopped -- on three 
> different computers!
>
> Thanks for your suggestions.  Any others?  :)
>
> 73,
>
> Joe, W2RBA
>   
>