[Elecraft] K3 Utility Reload issues

[Roger Huntley]

I tried to download latest K3 utility version 1.12.10.10 and ended up with
dead radio.  I tried the help advise and their recommendations ending with
still  nothing working.  I disconnected MicroHAM  keyer and the power  to
K3, connected radio direct to computer with  RS 232 outlet direct to COM
port, turned power off to radio, reapplied power and tried to reload
software and still only flashing TX LED with MCU LD showing without back lit
screen.  Any suggestion appreciated.
Roger, W7VV