//#define EXT1_HEATER_PIN HEATER_2_PIN

       #define LCD_PINS_RS        28

#define NUM_EXTRUDER 3

#define BEEPER_LONG_SEQUENCE 24,8

#define INVERT_X_DIR 0

That is now included as experimental feature in jam control. Set#define JAM_METHOD 2 or 3

#define Z_PROBE_X1 0

#define ENDSTOP_PULLUP_X_MIN true

#define Z_PROBE_Z_OFFSET 0

#define Z_PROBE_Z_OFFSET 0

Extrude temp is set to a reasonable value #define EXTRUDE_MINTEMP 150

#define Z_PROBE_Z_OFFSET 0

#define ENDSTOP_PULLUP_X_MIN false

#define Z_PROBE_START_SCRIPT ""

#define HEATED_BED_DECOUPLE_TEST_PERIOD 300000

First, verify that your probe is working with a G31. Does it toggle correctly? If you have a mechanical normally closed probe like mine, then #define Z_PROBE_PULLUP needs to be set to 1 before G31 wil

First, verify that your probe is working with a G31. Does it toggle correctly? If you have a mechanical normally closed probe like mine, then #define Z_PROBE_PULLUP needs to be set to 1 before G31 wil

#define FEATURE_Z_PROBE 1

in Configuration.h #define Z_PROBE_PULLUP is set to 0 by default, which is disabled. I switched it to 1 and my state now toggles correctly with M119. 

#define EXT0_ADVANCE_K 0