diff --git a/Firmware/Marlin_main.cpp b/Firmware/Marlin_main.cpp
index 95f86c55e..dbf5c6765 100644
--- a/Firmware/Marlin_main.cpp
+++ b/Firmware/Marlin_main.cpp
@@ -6803,7 +6803,7 @@ if (mmu_enabled)
 		  mmu_command(MMU_CMD_T0 + tmp_extruder);
 
 		  manage_response(true, true);
-
+		  mmu_command(MMU_CMD_C0);
     	  mmu_extruder = tmp_extruder; //filament change is finished
 
 		  if (*(strchr_pointer + index) == '?')// for single material usage with mmu
diff --git a/Firmware/mmu.cpp b/Firmware/mmu.cpp
index 05bf87046..196455dbd 100644
--- a/Firmware/mmu.cpp
+++ b/Firmware/mmu.cpp
@@ -24,6 +24,7 @@ extern char choose_extruder_menu();
 #define MMU_HWRESET
 #define MMU_RST_PIN 76
 
+#define MMU_REQUIRED_FW_BUILDNR 81
 
 bool mmu_enabled = false;
 
@@ -138,6 +139,9 @@ void mmu_loop(void)
 		{
 			fscanf_P(uart2io, PSTR("%u"), &mmu_buildnr); //scan buildnr from buffer
 			printf_P(PSTR("MMU => '%dok'\n"), mmu_buildnr);
+			bool version_valid = mmu_check_version();
+			if (!version_valid) mmu_show_warning();
+			else puts_P(PSTR("MMU version valid"));
 			puts_P(PSTR("MMU <= 'P0'"));
 		    mmu_puts_P(PSTR("P0\n")); //send 'read finda' request
 			mmu_state = -4;
@@ -170,6 +174,12 @@ void mmu_loop(void)
 			    mmu_printf_P(PSTR("L%d\n"), filament);
 			    mmu_state = 3; // wait for response
 			}
+			else if (mmu_cmd == MMU_CMD_C0)
+			{
+				printf_P(PSTR("MMU <= 'C0'\n"));
+				mmu_puts_P(PSTR("C0\n")); //send continue loading
+				mmu_state = 3;
+			}
 			mmu_cmd = 0;
 		}
 		else if ((mmu_last_response + 1000) < millis()) //request every 1s
@@ -196,7 +206,7 @@ void mmu_loop(void)
 	case 3: //response to commands T0-T4
 		if (mmu_rx_ok() > 0)
 		{
-			printf_P(PSTR("MMU => 'ok'\n"), mmu_finda);
+			printf_P(PSTR("MMU => 'ok'\n"));
 			mmu_ready = true;
 			mmu_state = 1;
 		}
@@ -404,6 +414,7 @@ void mmu_M600_load_filament(bool automatic)
 		  mmu_command(MMU_CMD_T0 + tmp_extruder);
 
 		  manage_response(false, true);
+		  mmu_command(MMU_CMD_C0);
     	  mmu_extruder = tmp_extruder; //filament change is finished
 
 		  mmu_load_to_nozzle();
@@ -820,3 +831,14 @@ void extr_unload_4()
 	change_extr(4);
 	extr_unload();
 }
+
+bool mmu_check_version()
+{
+	return (mmu_buildnr >= MMU_REQUIRED_FW_BUILDNR);
+}
+
+void mmu_show_warning()
+{
+	printf_P(PSTR("MMU2 firmware version invalid. Required version: build number %d or higher."), MMU_REQUIRED_FW_BUILDNR);
+	kill(_i("Please update firmware in your MMU2. Waiting for reset."));
+}
diff --git a/Firmware/mmu.h b/Firmware/mmu.h
index 835b615cb..a24dc4ccf 100644
--- a/Firmware/mmu.h
+++ b/Firmware/mmu.h
@@ -28,6 +28,7 @@ extern int16_t mmu_buildnr;
 #define MMU_CMD_L2   0x22
 #define MMU_CMD_L3   0x23
 #define MMU_CMD_L4   0x24
+#define MMU_CMD_C0   0x30
 
 extern int mmu_puts_P(const char* str);
 
@@ -79,3 +80,7 @@ extern void extr_unload_1();
 extern void extr_unload_2();
 extern void extr_unload_3();
 extern void extr_unload_4();
+
+extern bool mmu_check_version();
+extern void mmu_show_warning();
+