[Elecraft] K3 FPF Load failed

[Don Wilhelm]

Julian,

This was an intermittent problem experienced by a few K3 owners.  It was 
fixed in version 2.22 - see the firmware release notes.

73,
Don W3FPR

Julian, G4ILO wrote:
> It has been about 3 weeks since I last switched on my K3 and when I did so
> just now, VFO A said "FPF Load" and VFO B said "Pending". It was working OK
> when I last switched it off.
>
> I decided that the best thing to do would be to load the latest beta
> firmware, which was what I was going to do anyway, but the K3 Utility
> reported:
>
> Sending firmware file hfpf0002.hex to FPF
> 21:40:28 Send FPF firmware failed at load address x7b1f
> 21:40:28 FPF program load failed
> 21:40:28 Ready
>
> The receiver appears to be working and I can tune the VFO, although I have
> no idea where I am as the VFO display just reads FPF Load / Pending.
>
> While typing this I managed to clear the problem by pressing Band Down until
> I got to the lower bands, when I saw that frequencies were appearing again.
> When I press Band Up frequencies are now appearing, but when I move up to
> 21MHz or any higher band VFO B briefly displays ERR PL1 before showing the
> frequency.
>
> Having got to this point, I tried to upload the firmware again and this time
> it appears to have been successful. So what went wrong? The previous
> firmware was, I think, 2.13 beta. All seems OK now but it was a scary moment
> that I could have done without.
>
>