[Elecraft] K3 #811 Locked Up

[Bob Tellefsen]

Guess it's my turn to have a problem.
Rig here is K3 #811.
Options are KAT3, KXV3, KBPF3, 400 Hz 8 pole xfil.

My problem is that at turn-on I have every icon on the LCD display on
simultaneously, almost like an LCD display test.
Rig doesn't respond to any commands.
Tried connecting to the K3 Utility, and it says,
"Cannot communicate with K3".  I've checked both serial ports,
so that doesn't "appear" to be the problem.
I've tried recycling power several times with no luck.

What can I do to break it out of this?

I've queried Tom Hammond, N0SS, but being the weekend, don't
know how long it will be before he can reply.  So thought I'd
query the E'craft brain trust :-)

Thanks and 73
Bob N6WG