ROBO 3D R1+ Plus w LCD screen?

I should probably start a new thread but since this started here I'll state what happened to me. I didn't need a buck converter as there is a jumper on the TFT2.8 that allows you to change it to 12v. I just recieved my new board (rev 4) and connected everything up. Everything was working including the TFT2.8 but the Y axis was trying to home in the wrong direction.
I was assuming it was because I didn't reverse the way the Y axis plugs into the board as it was on my old one so I went to configuration.h and changed #define_X_HOME_DIR -1 to #define X_HOME_DIR 1. After uploading the Y axis just locked solid and the computer would not connect any longer.
Thinking I better set it all back the way it was I changed it back and also reversed the plug on the board to match the original configuration on my old board. Now I can upload firmware but the computer and TFT no longer communicate with it and the Y axis still locks and stays locked. I tried changing the driver board and that did nothing.
Did I fry it by changing the homing direction or by reversing the way the wires plugged into the Ramps board?