There are step by step instructions in K3 Utility Help, Trouble Shooting.
73 de Dick, K6KR
> On Apr 3, 2022, at 13:25, Don Wilhelm wrote:
>
> Go to the manual and look up how to recover from that condition (Forcing a
> firmware download).
> It on page 42 of my old manual under Firmware
Page 47 =
https://ftp.elecraft.com/K3S/Manuals%20Downloads/K3S%20Owner's%20man%20A1.pdf
K3S Firmware Self-Test
If the K3S detects an error in its firmware (an incorrect checksum), it
will flash the TX LED and show MCU LD on the LCD (with backlight off). If
this occurs, connect the K3S to your
Go to the manual and look up how to recover from that condition (Forcing
a firmware download).
It on page 42 of my old manual under Firmware Updates, the page may have
changed in newer manuals.
It is easy to do and does not have to go to a repair facility.
73,
Don W3FPR
On 4/3/2022 1:37 PM,
Here is one line from an EA6 message about a K3 he just purchased .
Elecraft K3 is stuck at MCU LD and need to be sent to Italy to Elecraft
Official Service to recover it.
Are there any tricks to recover without sending it to a service site ??
I have told him how to subscribe to the
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