[Elecraft] Button of no return.

[Dick Frey]

Rule 1:  NEVER use the POWER button to escape from the TUNE function. It
can cause your MCU to crash and lose its mind.

Rule 2: When reloading your MCU, make sure the 15pin ACC plug is
disconnected or the MCU will not initialize.

Rule 3: If you have your K3 all set up the way you like it, run the K3
Utility and Save your Configuration to a file so you don't have to start
from scratch when you break Rule 1.

Thanks to W3FPR, VK1ZZ and especially K6KR who hit on the acc plug.
-- 
73,

Dick - K4XU  with egg on face....