Jrintx Posted August 8 Share Posted August 8 We have a National Venders cold food machine #432D. we tried hooking up a credit card reader but it would not communicate with the board. Would replacing the EPROM (which would update the software) solve this issue? Or should we hold off on trying this? Or any suggestions? thank you Link to comment Share on other sites More sharing options...
allen watson Posted August 8 Share Posted August 8 Yes the eprom fixes the issue. I upgraded 3 of them with no problems Link to comment Share on other sites More sharing options...
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