If he had the panel apart he may have plugged the one connector into the wrong socket on the board. There is one connector that fits into an unused socket. Can't remember what the numbers were.
From another poster : "The solution for me was to put the connector CN8 to CN1 where it belongs to . That is what causes the C-code program loading. Nothing wrong with copier. Usually it happens when you replace the screen or touch panel. KM should have put different size connector for CN8 socket so there is no option for fault! -- Habik"
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