i recently replaced my RAMPS 1.4 because I was having issues with my E stepper not working and jittering while all others were still working. It wasn’t the cable or driver or motor itself so I decided for 7 dollars to just replace the ramps. After replacing all the cables and bits exactly how it was before now the hotend heats up even when its not supposed to. I tested the transistors to see if any are shot but I don’t think I can find anything. I’m going to triple check the wireing to hopefully find something.