I an new to 3D printing and bought a Prusa clone which worked well for a few weeks before the controller board threw a fault. I replaced it with a Geeetech GT2560 which is working fine and I am getting some good prints. I cannot solve one problem - that of getting the 5 button LCD 2004 working with the new board. I have swapped the power connections as discussed in other posts but still no go. If I plug it into the Anet board (or its clone) the display works fine. I have read about changing pins etc but that's whereI get lost. Anyone done this before? Any help welcomed.