Express wired RFU... Stuck in "waiting for communication"

Express wired RFU...  stuck in ".......waiting for communication".  As stated , it worked great for hours, disconnected it for the show, plugged it back in afterwards to do change-over and now its stuck.  I metered the wires between the connector and circuit board, that seems ok.  Led is blinking on circuit board.  And I have re-seated the chips.  This was plugged directly into the console for testing...   Any other ideas...   I was temped to lop off the connector and resolder, but thought I would post to the forums first.  Thanks -Bob

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