W5UN wrote:
>
> This is not a cabling issue, and no procedure listed in the manual
> works. I cannot get the radio to come on at all except to get the
> flashing red TX LED and the unbacklighted "MCU LD" indication when
> powered up. I have tried the Parameter Initialization procedure
> listed on page 61 of the manual, and I have tried holding the power
> button down for ten seconds while powering up. Neither of these
> yields any different results. Looks like I'm out of a K3 until I can
> call Elecraft tomorrow.
>
> My K3 is frozen after attempting to load the latest firmware. The red
> TX LED is blinking and the display reads "MCU LD" with no back
> lighting. No buttons respond, and removing and reapplying power
> brings back the same frozen state. I have searched previous emails on
> this reflector, and have found no workable solutions. Any ideas?
>
> The K3 communicated OK with the computer prior to attempting the
> firmware update.
>
I've gotten myself into that state a few times, which is quite unnerving! I
believe I did this by accidentally interrupting the download process. The
solution may be patience. Make sure you have a good serial hardware
connection, that your K3 Utility is open to the update page and then power
cycle the K3. Then WAIT.... Mine has always recovered but I honestly can't
accurately describe how I got into the state...or out of it, but I've always
succeeded.
73 & GL!
Bill
--
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