In configuration.h

#define BAUDRATE 115200 (recomended to be more realiable)

select the display:

#define REPRAP_DISCOUNT_FULL_GRAPHIC_SMART_CONTROLLER

#if DISABLED(ENDSTOPPULLUPS)

// fine endstop settings: Individual pullups. will be ignored if ENDSTOPPULLUPS is defined
#define ENDSTOPPULLUP_XMAX
#define ENDSTOPPULLUP_YMAX
#define ENDSTOPPULLUP_ZMAX
#define ENDSTOPPULLUP_XMIN
#define ENDSTOPPULLUP_YMIN
#define ENDSTOPPULLUP_ZMIN
#define ENDSTOPPULLUP_ZMIN_PROBE

#endif

Mechanical endstop with COM to ground and NC to Signal uses “false” here (most common setup). #define X_MIN_ENDSTOP_INVERTING true set to true to invert the logic of the endstop. #define Y_MIN_ENDSTOP_INVERTING true set to true to invert the logic of the endstop. #define Z_MIN_ENDSTOP_INVERTING true set to true to invert the logic of the endstop. #define X_MAX_ENDSTOP_INVERTING true set to true to invert the logic of the endstop. #define Y_MAX_ENDSTOP_INVERTING true set to true to invert the logic of the endstop. #define Z_MAX_ENDSTOP_INVERTING true set to true to invert the logic of the endstop. #define Z_MIN_PROBE_ENDSTOP_INVERTING true set to true to invert the logic of the endstop.