[Amps] KPA500 Stuck in MCU load - after failed upgrade attempt

[krishna kanakasapapathi <kkanakas@cisco.com>]

Folks,
 The KPA500 is in a remote setup and i tried to upgrade from 1.23 to 
1.33 over the remote setup.
 The connection dropped and the amp did not recover.
 The On/Off front panel does not respond. Power cycling the amp has not 
made it go back to the
 older version either.
 The front panel display says "MCU Load".

 I am going to call Elecraft tomorrow, but thought i will drop a note 
to check if anyone has the magic
 procedure to recover.

 TIA

73s
krish
w4vku
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