I just purchased a full graphic smart controller from greentech (has anyone else had experience with them?) to upgrade my printer. I have used the regular smart controller in the past and it was great. When I added the controller it appeared to be working well at first but then I noticed that it was not able to move the axes. Auto home and move axes did not work but everything else like preheat PLA and abs worked. I then realized I had an old version of marlin so I downloaded the latest marlin and configured it. This changed the graphics on the controller quite a bit but the problem still persisted. Then the lcd started changing contrast strangely even after I set it with the trimpot on the back. I'm using a 12v 30a power supply if that helps. Ramps 1.4 too.
Thanks, will post updates
