I ordered the parts to build a ZenXY table a while back, and yesterday I decided to finish it up. I used old guy codings belt routing, programmed the mini Rambo with the Marlin software (Marlin ZenXY ramps 16T LCD 32), plugged everything in around 3am, and the LCD lit up, but only solid blue.
I searched the forum, saw a couple posts of people saying to turn the cables 180 degrees. I’ve unplugged it, swapped cables, plugged it back in, unplugged it again, rinse lather repeat. I just tried reflashing the board, tried all the combinations again, no success. Do I need to flash the board with the LCD plugged in? Am I missing something? Photo of my current situation included, any help is appreciated!