Reply To: Ramps/Mega movement issues

#12887
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Jason
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All min and max endstops show open for x y and z

was getting a checksum error as well but i think that is because I dont have an sd card reader

would the mintemp error cause this?

1 pin is loose. The single pin just above all the end stop pins. Its label 12c on my ramps what does that one do?