[Elecraft] K3 reset/reboot

[M.]

My K3 has lost its mind.

The K3 has been sitting off the operating table for a couple of months (sacrilege I know!). Tonight I hooked it back up and powered up and while the display looks ok, none of the buttons function as they should. Most of them do nothing, others are mis-mapped, i.e. Mode ^ toggles ANT1/2, Mode (dwn) toggles RX/ATT, XMIT turns the preamp on and off .....

Tried the Shift/Power Up trick to reset and no joy. Of course it doesn't respond to any serial communications.... Checked the internal coin cell and its ok ...

Any tricks I'm missing? Hopefully not a trip back to the mothership.

73, Mike N4GU
K3 #01710