diff --git a/Marlin/Configuration.h b/Marlin/Configuration.h
index 92aece1b40..7226b452ad 100644
--- a/Marlin/Configuration.h
+++ b/Marlin/Configuration.h
@@ -121,7 +121,6 @@
  * :[2400, 9600, 19200, 38400, 57600, 115200, 250000, 500000, 1000000]
  */
 #define BAUDRATE 115200
-#define USB_BAUDRATE 250000
 
 // Enable the Bluetooth serial interface on AT90USB devices
 //#define BLUETOOTH
diff --git a/Marlin/src/MarlinCore.cpp b/Marlin/src/MarlinCore.cpp
index ae75378218..610ab7962b 100644
--- a/Marlin/src/MarlinCore.cpp
+++ b/Marlin/src/MarlinCore.cpp
@@ -977,7 +977,7 @@ void setup() {
   serial_connect_timeout = millis() + 1000UL;
   while (!MYSERIAL1 && PENDING(millis(), serial_connect_timeout)) { /*nada*/ }
   #endif
-
+  SERIAL_ECHO_MSG("start");
 
   #if BOTH(HAS_TFT_LVGL_UI, USE_WIFI_FUNCTION)
     mks_esp_wifi_init();