diff --git a/Firmware/Marlin_main.cpp b/Firmware/Marlin_main.cpp
index bbb0fbd14..cc3582dc3 100644
--- a/Firmware/Marlin_main.cpp
+++ b/Firmware/Marlin_main.cpp
@@ -2042,7 +2042,7 @@ void process_commands()
         return;
     } else if (code_seen("SERIAL HIGH")) {
         MYSERIAL.println("SERIAL HIGH");
-        MYSERIAL.begin(1152000);
+        MYSERIAL.begin(2500000);
         return;
     } else if(code_seen("Beat")) {
         // Kick farm link timer
@@ -2828,11 +2828,12 @@ void process_commands()
 		current_position[Z_AXIS] = PINDA_PREHEAT_Z;
 		plan_buffer_line(current_position[X_AXIS], current_position[Y_AXIS], current_position[Z_AXIS], current_position[E_AXIS], 3000 / 60, active_extruder);
 		st_synchronize();
-
+		
 		while (abs(degBed() - PINDA_MIN_T) > 1 ) delay_keep_alive(1000);
 		
 		//enquecommand_P(PSTR("M190 S50"));
 		for (int i = 0; i < PINDA_HEAT_T; i++)	delay_keep_alive(1000);
+		calibration_status_store(CALIBRATION_STATUS_PINDA); //invalidate temp. calibration in case that in will be aborted during the calibration process 
 
 		current_position[Z_AXIS] = 5;
 		plan_buffer_line(current_position[X_AXIS], current_position[Y_AXIS], current_position[Z_AXIS], current_position[E_AXIS], 3000 / 60, active_extruder);
@@ -6321,6 +6322,7 @@ void bed_analysis(float x_dimension, float y_dimension, int x_points_num, int y_
 #endif
 
 void temp_compensation_start() {
+	
 	custom_message = true;
 	custom_message_type = 5;
 	custom_message_state = PINDA_HEAT_T + 1;
@@ -6335,11 +6337,12 @@ void temp_compensation_start() {
 	st_synchronize();
 	while (fabs(degBed() - target_temperature_bed) > 1) delay_keep_alive(1000);
 
-	for (int i = 0; i < PINDA_HEAT_T*2; i++) {
-		delay_keep_alive(500);
-		custom_message_state = PINDA_HEAT_T - i*0.5;
-	}
-
+	for (int i = 0; i < PINDA_HEAT_T; i++) {
+		delay_keep_alive(1000);
+		custom_message_state = PINDA_HEAT_T - i;
+		if (custom_message_state == 99 || custom_message_state == 9) lcd_update(2); //force whole display redraw if number of digits changed
+		else lcd_update(1);
+	}	
 	custom_message_type = 0;
 	custom_message_state = 0;
 	custom_message = false;
diff --git a/Firmware/ultralcd.cpp b/Firmware/ultralcd.cpp
index 290848ad5..5f6c8a5f7 100644
--- a/Firmware/ultralcd.cpp
+++ b/Firmware/ultralcd.cpp
@@ -3131,6 +3131,13 @@ static void extr_change_3() {
 }
 
 //wrapper functions for unloading filament
+static void extr_unload_all() {
+	for (int i = 0; i < 4; i++) {
+		change_extr(i);
+		extr_unload();
+	}
+}
+
 static void extr_unload_0() {
 	change_extr(0);
 	extr_unload();
@@ -3166,6 +3173,7 @@ static void fil_unload_menu()
 {
 	START_MENU();
 	MENU_ITEM(back, MSG_MAIN, lcd_main_menu);
+	MENU_ITEM(function, PSTR("Unload all"), extr_unload_all);
 	MENU_ITEM(function, PSTR("Unload filament 1"), extr_unload_0);
 	MENU_ITEM(function, PSTR("Unload filament 2"), extr_unload_1);
 	MENU_ITEM(function, PSTR("Unload filament 3"), extr_unload_2);
diff --git a/Firmware/ultralcd_implementation_hitachi_HD44780.h b/Firmware/ultralcd_implementation_hitachi_HD44780.h
index 366d76d7d..aa40f46d4 100644
--- a/Firmware/ultralcd_implementation_hitachi_HD44780.h
+++ b/Firmware/ultralcd_implementation_hitachi_HD44780.h
@@ -972,8 +972,10 @@ static void lcd_implementation_status_screen()
 			if (custom_message_type == 5) {
 				lcd.setCursor(0, 3);
 				lcd_printPGM(MSG_PINDA_PREHEAT);
-				lcd.setCursor(15, 3);
-				if(custom_message_state <= PINDA_HEAT_T) lcd.print(custom_message_state);
+				if (custom_message_state <= PINDA_HEAT_T) {
+					lcd_printPGM(PSTR(": "));
+					lcd.print(custom_message_state); //seconds
+				}
 			}