diff --git a/Marlin/Configuration.h b/Marlin/Configuration.h
index fcc3f22..bd88796 100644
--- a/Marlin/Configuration.h
+++ b/Marlin/Configuration.h
@@ -88,7 +88,7 @@
 
 // Choose the name from boards.h that matches your setup
 #ifndef MOTHERBOARD
-  #define MOTHERBOARD BOARD_BTT_SKR_V1_3
+  #define MOTHERBOARD BOARD_BTT_SKR_MINI_E3_V3_0
 #endif
 
 /**
@@ -99,7 +99,7 @@
  *
  * :[-1, 0, 1, 2, 3, 4, 5, 6, 7]
  */
-#define SERIAL_PORT -1
+#define SERIAL_PORT 2
 
 /**
  * Serial Port Baud Rate
@@ -121,7 +121,7 @@
  * Currently Ethernet (-2) is only supported on Teensy 4.1 boards.
  * :[-2, -1, 0, 1, 2, 3, 4, 5, 6, 7]
  */
-#define SERIAL_PORT_2 0
+#define SERIAL_PORT_2 -1
 #define BAUDRATE_2 250000   // :[2400, 9600, 19200, 38400, 57600, 115200, 250000, 500000, 1000000] Enable to override BAUDRATE
 
 /**
@@ -1673,7 +1673,7 @@
 // Invert the stepper direction. Change (or reverse the motor connector) if an axis goes the wrong way.
 #define INVERT_X_DIR false
 #define INVERT_Y_DIR false
-#define INVERT_Z_DIR true
+#define INVERT_Z_DIR false
 //#define INVERT_I_DIR false
 //#define INVERT_J_DIR false
 //#define INVERT_K_DIR false