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KM5050 top operation panel bootrom mismatch
Hello,
I have a bunch of KM30/40/5050 machines that are "dead" due to top operation panel not working. Most of the time CFB31 or CFB 30. I understand from reading through the posts, that the bootroms on the panel and the main board must match. Unfortunately, my technicians kind of lost track of the pairs and unable to "rematch" them back.
We tried to do firmware upgrades using the mismatch pair and sometimes it works. There is one machine now that is up and running but the touch panel is not responding (buttons ok). It is not the hardware because when we put a good matched pair of bootroms, the touch panel work.
Does anybody know an easy way to find and identify the matching bootroms or how to make them match?
Thanks
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