diff --git a/Firmware/Dcodes.cpp b/Firmware/Dcodes.cpp
index 450a61b5c..85de98bd2 100644
--- a/Firmware/Dcodes.cpp
+++ b/Firmware/Dcodes.cpp
@@ -865,7 +865,7 @@ void dcode_2130()
 }
 #endif //TMC2130
 
-#ifdef PAT9125
+#if defined(FILAMENT_SENSOR) && (FILAMENT_SENSOR_TYPE == FSENSOR_PAT9125)
     /*!
     ### D9125 - PAT9125 filament sensor <a href="https://reprap.org/wiki/G-code#D9:_Read.2FWrite_ADC">D9125: PAT9125 filament sensor</a>
     #### Usage
@@ -878,7 +878,6 @@ void dcode_2130()
     - `R` - Resolution. Not active in code
     - `X` - X values
     - `Y` - Y values
-    - `L` - Activate filament sensor log
     */
 void dcode_9125()
 {
@@ -913,7 +912,7 @@ void dcode_9125()
 		LOG("pat9125_y=%d\n", pat9125_y);
 	}
 }
-#endif //PAT9125
+#endif //defined(FILAMENT_SENSOR) && (FILAMENT_SENSOR_TYPE == FSENSOR_PAT9125)
 
 #endif //DEBUG_DCODES
 
diff --git a/Firmware/Dcodes.h b/Firmware/Dcodes.h
index 964f6d748..c2762830d 100644
--- a/Firmware/Dcodes.h
+++ b/Firmware/Dcodes.h
@@ -53,9 +53,9 @@ extern void dcode_81(); //D81 - Bed analysis. This command will log data to SD c
 	extern void dcode_2130(); //D2130 - TMC2130
 #endif //TMC2130
 
-#ifdef PAT9125
+#if defined(FILAMENT_SENSOR) && (FILAMENT_SENSOR_TYPE == FSENSOR_PAT9125)
 	extern void dcode_9125(); //D9125 - PAT9125
-#endif //PAT9125
+#endif //defined(FILAMENT_SENSOR) && (FILAMENT_SENSOR_TYPE == FSENSOR_PAT9125)
 
 
 #endif //DCODES_H
diff --git a/Firmware/Filament_sensor.h b/Firmware/Filament_sensor.h
index 1dcaab49e..cc664d746 100644
--- a/Firmware/Filament_sensor.h
+++ b/Firmware/Filament_sensor.h
@@ -29,6 +29,9 @@ public:
     virtual void deinit() = 0;
     virtual bool update() = 0;
     virtual bool getFilamentPresent() = 0;
+#ifdef FSENSOR_PROBING
+    virtual bool probeOtherType() = 0; //checks if the wrong fsensor type is detected.
+#endif
     
     enum class State : uint8_t {
         disabled = 0,
@@ -238,6 +241,12 @@ public:
         return !READ(IR_SENSOR_PIN);
     }
     
+#ifdef FSENSOR_PROBING
+    bool probeOtherType() {
+        return pat9125_probe();
+    }
+#endif
+    
     void settings_init() {
         Filament_sensor::settings_init();
     }
@@ -511,6 +520,17 @@ public:
         return filterFilPresent;
     }
     
+#ifdef FSENSOR_PROBING
+    bool probeOtherType() {
+        SET_INPUT(IR_SENSOR_PIN); //input mode
+        WRITE(IR_SENSOR_PIN, 1); //pullup
+        _delay_us(100); //wait for the pullup to pull the line high (might be needed, not really sure. The internal pullups are quite weak and there might be a long wire attached).
+        bool fsensorDetected = !READ(IR_SENSOR_PIN);
+        WRITE(IR_SENSOR_PIN, 0); //no pullup
+        return fsensorDetected;
+    }
+#endif
+    
     void setJamDetectionEnabled(bool state, bool updateEEPROM = false) {
         jamDetection = state;
         oldPos = pat9125_y;
diff --git a/Firmware/Marlin_main.cpp b/Firmware/Marlin_main.cpp
index e788a8160..64743f05a 100644
--- a/Firmware/Marlin_main.cpp
+++ b/Firmware/Marlin_main.cpp
@@ -690,9 +690,6 @@ void failstats_reset_print()
 	eeprom_update_byte((uint8_t *)EEPROM_POWER_COUNT, 0);
 	eeprom_update_byte((uint8_t *)EEPROM_MMU_FAIL, 0);
 	eeprom_update_byte((uint8_t *)EEPROM_MMU_LOAD_FAIL, 0);
-#if defined(FILAMENT_SENSOR) && defined(PAT9125)
-    fsensor_softfail = 0;
-#endif
 }
 
 void softReset()
@@ -863,24 +860,14 @@ void show_fw_version_warnings() {
 	lcd_update_enable(true);
 }
 
+#if defined(FILAMENT_SENSOR) && defined(FSENSOR_PROBING)
 //! @brief try to check if firmware is on right type of printer
-static void check_if_fw_is_on_right_printer(){
-#ifdef FILAMENT_SENSOR
-  if((PRINTER_TYPE == PRINTER_MK3) || (PRINTER_TYPE == PRINTER_MK3S)){
-    #ifdef IR_SENSOR
-      if (pat9125_probe()){
-        lcd_show_fullscreen_message_and_wait_P(_i("MK3S firmware detected on MK3 printer"));}////MSG_MK3S_FIRMWARE_ON_MK3 c=20 r=4
-    #endif //IR_SENSOR
-
-    #ifdef PAT9125
-      //will return 1 only if IR can detect filament in bondtech extruder so this may fail even when we have IR sensor
-      const uint8_t ir_detected = fsensor.getFilamentPresent();
-      if (ir_detected){
-        lcd_show_fullscreen_message_and_wait_P(_i("MK3 firmware detected on MK3S printer"));}////MSG_MK3_FIRMWARE_ON_MK3S c=20 r=4
-    #endif //PAT9125
-  }
-#endif //FILAMENT_SENSOR
+static void check_if_fw_is_on_right_printer() {
+    if (fsensor.probeOtherType()) {
+        lcd_show_fullscreen_message_and_wait_P(_i((PRINTER_NAME " firmware detected on " PRINTER_NAME_ALTERNATE " printer")));////c=20 r=4
+    }
 }
+#endif //defined(FILAMENT_SENSOR) && defined(FSENSOR_PROBING)
 
 uint8_t check_printer_version()
 {
@@ -1500,7 +1487,9 @@ void setup()
   KEEPALIVE_STATE(PAUSED_FOR_USER);
 
   if (!farm_mode) {
+#if defined(FILAMENT_SENSOR) && defined(FSENSOR_PROBING)
     check_if_fw_is_on_right_printer();
+#endif //defined(FILAMENT_SENSOR) && defined(FSENSOR_PROBING)
     show_fw_version_warnings();    
   }
 
@@ -6519,9 +6508,9 @@ Sigma_Exit:
               axis_steps_per_sqr_second[i] *= factor;
             }
             cs.axis_steps_per_unit[i] = value;
-#if defined(FILAMENT_SENSOR) && defined(PAT9125)
+#if defined(FILAMENT_SENSOR) && (FILAMENT_SENSOR_TYPE == FSENSOR_PAT9125)
             fsensor.init();
-#endif
+#endif //defined(FILAMENT_SENSOR) && (FILAMENT_SENSOR_TYPE == FSENSOR_PAT9125)
           }
           else {
             cs.axis_steps_per_unit[i] = code_value();
@@ -8455,10 +8444,10 @@ Sigma_Exit:
 						cs.axis_steps_per_unit[i] /= fac;
 						position[i] /= fac;
 					}
-#if defined(FILAMENT_SENSOR) && defined(PAT9125)
+#if defined(FILAMENT_SENSOR) && (FILAMENT_SENSOR_TYPE == FSENSOR_PAT9125)
 					if (i == E_AXIS)
 						fsensor.init();
-#endif
+#endif //defined(FILAMENT_SENSOR) && (FILAMENT_SENSOR_TYPE == FSENSOR_PAT9125)
 				}
 			}
 		}
@@ -9089,7 +9078,7 @@ Sigma_Exit:
 		dcode_2130(); break;
 #endif //TMC2130
 
-#if (defined (FILAMENT_SENSOR) && defined(PAT9125))
+#if defined(FILAMENT_SENSOR) && (FILAMENT_SENSOR_TYPE == FSENSOR_PAT9125)
 
     /*!
     ### D9125 - PAT9125 filament sensor <a href="https://reprap.org/wiki/G-code#D9:_Read.2FWrite_ADC">D9125: PAT9125 filament sensor</a>
@@ -9107,7 +9096,7 @@ Sigma_Exit:
     */
 	case 9125:
 		dcode_9125(); break;
-#endif //FILAMENT_SENSOR
+#endif //defined(FILAMENT_SENSOR) && (FILAMENT_SENSOR_TYPE == FSENSOR_PAT9125)
 
 #endif //DEBUG_DCODES
 
diff --git a/Firmware/ultralcd.cpp b/Firmware/ultralcd.cpp
index e75d9063a..c8ea0c113 100755
--- a/Firmware/ultralcd.cpp
+++ b/Firmware/ultralcd.cpp
@@ -212,14 +212,18 @@ enum class FanCheck : uint_least8_t {
 static FanCheck lcd_selftest_fan_auto(uint8_t _fan);
 #endif //FANCHECK
 
-#ifdef PAT9125
+#ifdef FILAMENT_SENSOR
+#if FILAMENT_SENSOR_TYPE == FSENSOR_PAT9125
 static bool lcd_selftest_fsensor();
-#endif //PAT9125
+#elif FILAMENT_SENSOR_TYPE == FSENSOR_IR
+static bool selftest_irsensor();
+#elif FILAMENT_SENSOR_TYPE == FSENSOR_IR_ANALOG
 static bool selftest_irsensor();
-#if defined(FILAMENT_SENSOR) && (FILAMENT_SENSOR_TYPE == FSENSOR_IR_ANALOG)
 static bool lcd_selftest_IRsensor(bool bStandalone=false);
 static void lcd_detect_IRsensor();
-#endif //IR_SENSOR_ANALOG
+#endif
+#endif //FILAMENT_SENSOR
+
 static void lcd_selftest_error(TestError error, const char *_error_1, const char *_error_2);
 static void lcd_colorprint_change();
 
@@ -1253,13 +1257,7 @@ static void lcd_menu_fails_stats_print()
     uint8_t crashX = eeprom_read_byte((uint8_t*)EEPROM_CRASH_COUNT_X);
     uint8_t crashY = eeprom_read_byte((uint8_t*)EEPROM_CRASH_COUNT_Y);
     lcd_home();
-#ifndef PAT9125
-    lcd_printf_P(failStatsFmt,
-        _T(MSG_LAST_PRINT_FAILURES),
-        _T(MSG_POWER_FAILURES), power,
-        _T(MSG_FIL_RUNOUTS), filam,
-        _T(MSG_CRASH), crashX, crashY);
-#else
+#if FILAMENT_SENSOR_TYPE == FSENSOR_PAT9125
     // On the MK3 include detailed PAT9125 statistics about soft failures
     lcd_printf_P(PSTR("%S\n"
                       " %-16.16S%-3d\n"
@@ -1269,6 +1267,14 @@ static void lcd_menu_fails_stats_print()
                  _T(MSG_POWER_FAILURES), power,
                  _i("Runouts"), filam, //MSG_RUNOUTS c=7
                  _T(MSG_CRASH), crashX, crashY);
+#elif (FILAMENT_SENSOR_TYPE == FSENSOR_IR) || (FILAMENT_SENSOR_TYPE == FSENSOR_IR_ANALOG)
+    lcd_printf_P(failStatsFmt,
+        _T(MSG_LAST_PRINT_FAILURES),
+        _T(MSG_POWER_FAILURES), power,
+        _T(MSG_FIL_RUNOUTS), filam,
+        _T(MSG_CRASH), crashX, crashY);
+#else
+#error This menu should have a filament sensor defined
 #endif
     menu_back_if_clicked_fb();
 }
@@ -6417,7 +6423,7 @@ bool lcd_selftest()
 #ifdef FILAMENT_SENSOR
     if (_result)
     {
-
+#if (FILAMENT_SENSOR_TYPE == FSENSOR_IR) || (FILAMENT_SENSOR_TYPE == FSENSOR_IR_ANALOG)
         if (mmu_enabled)
         {        
 			_progress = lcd_selftest_screen(TestScreen::Fsensor, _progress, 3, true, 2000); //check filaments sensor
@@ -6427,15 +6433,16 @@ bool lcd_selftest()
 				_progress = lcd_selftest_screen(TestScreen::FsensorOk, _progress, 3, true, 2000); //fil sensor OK
 			}
         } else
+#endif //(FILAMENT_SENSOR_TYPE == FSENSOR_IR) || (FILAMENT_SENSOR_TYPE == FSENSOR_IR_ANALOG)
         {
-#ifdef PAT9125
+#if FILAMENT_SENSOR_TYPE == FSENSOR_PAT9125
 			_progress = lcd_selftest_screen(TestScreen::Fsensor, _progress, 3, true, 2000); //check filaments sensor
                _result = lcd_selftest_fsensor();
 			if (_result)
 			{
 				_progress = lcd_selftest_screen(TestScreen::FsensorOk, _progress, 3, true, 2000); //fil sensor OK
 			}
-#endif //PAT9125
+#endif //FILAMENT_SENSOR_TYPE == FSENSOR_PAT9125
 #if 0
 	// Intentionally disabled - that's why we moved the detection to runtime by just checking the two voltages.
 	// The idea is not to force the user to remove and insert the filament on an assembled printer.
@@ -6997,7 +7004,7 @@ static void lcd_selftest_error(TestError testError, const char *_error_1, const
 }
 
 #ifdef FILAMENT_SENSOR
-#ifdef PAT9125
+#if FILAMENT_SENSOR_TYPE == FSENSOR_PAT9125
 static bool lcd_selftest_fsensor(void)
 {
 	fsensor.init();
@@ -7007,8 +7014,9 @@ static bool lcd_selftest_fsensor(void)
 	}
 	return (!fsensor.isError());
 }
-#endif //PAT9125
+#endif //FILAMENT_SENSOR_TYPE == FSENSOR_PAT9125
 
+#if (FILAMENT_SENSOR_TYPE == FSENSOR_IR) || (FILAMENT_SENSOR_TYPE == FSENSOR_IR_ANALOG)
 //! @brief Self-test of infrared barrier filament sensor mounted on MK3S with MMUv2 printer
 //!
 //! Test whether sensor is not triggering filament presence when extruder idler is moving without filament.
@@ -7076,6 +7084,7 @@ static bool selftest_irsensor()
     }
     return true;
 }
+#endif //(FILAMENT_SENSOR_TYPE == FSENSOR_IR) || (FILAMENT_SENSOR_TYPE == FSENSOR_IR_ANALOG)
 #endif //FILAMENT_SENSOR
 
 static bool lcd_selftest_manual_fan_check(int _fan, bool check_opposite,
diff --git a/Firmware/variants/1_75mm_MK25-RAMBo10a-E3Dv6full.h b/Firmware/variants/1_75mm_MK25-RAMBo10a-E3Dv6full.h
index f1741cde7..ccd88c0e8 100644
--- a/Firmware/variants/1_75mm_MK25-RAMBo10a-E3Dv6full.h
+++ b/Firmware/variants/1_75mm_MK25-RAMBo10a-E3Dv6full.h
@@ -10,6 +10,7 @@
 // Printer revision
 #define PRINTER_TYPE PRINTER_MK25
 #define PRINTER_NAME PRINTER_MK25_NAME
+#define PRINTER_NAME_ALTERNATE PRINTER_MK25S_NAME //the other similar printer to this.
 #define PRINTER_MMU_TYPE PRINTER_MK25_MMU2
 #define PRINTER_MMU_NAME PRINTER_MK25_MMU2_NAME
 #define FILAMENT_SIZE "1_75mm_MK25"
diff --git a/Firmware/variants/1_75mm_MK25-RAMBo13a-E3Dv6full.h b/Firmware/variants/1_75mm_MK25-RAMBo13a-E3Dv6full.h
index e0ec7d1e1..0de301984 100644
--- a/Firmware/variants/1_75mm_MK25-RAMBo13a-E3Dv6full.h
+++ b/Firmware/variants/1_75mm_MK25-RAMBo13a-E3Dv6full.h
@@ -10,6 +10,7 @@
 // Printer revision
 #define PRINTER_TYPE PRINTER_MK25
 #define PRINTER_NAME PRINTER_MK25_NAME
+#define PRINTER_NAME_ALTERNATE PRINTER_MK25S_NAME //the other similar printer to this.
 #define PRINTER_MMU_TYPE PRINTER_MK25_MMU2
 #define PRINTER_MMU_NAME PRINTER_MK25_MMU2_NAME
 #define FILAMENT_SIZE "1_75mm_MK25"
diff --git a/Firmware/variants/1_75mm_MK25S-RAMBo10a-E3Dv6full.h b/Firmware/variants/1_75mm_MK25S-RAMBo10a-E3Dv6full.h
index 0c1db6d58..a4291ca8d 100644
--- a/Firmware/variants/1_75mm_MK25S-RAMBo10a-E3Dv6full.h
+++ b/Firmware/variants/1_75mm_MK25S-RAMBo10a-E3Dv6full.h
@@ -10,6 +10,7 @@
 // Printer revision
 #define PRINTER_TYPE PRINTER_MK25S
 #define PRINTER_NAME PRINTER_MK25S_NAME
+#define PRINTER_NAME_ALTERNATE PRINTER_MK25_NAME //the other similar printer to this.
 #define PRINTER_MMU_TYPE PRINTER_MK25S_MMU2
 #define PRINTER_MMU_NAME PRINTER_MK25S_MMU2_NAME
 #define FILAMENT_SIZE "1_75mm_MK25S"
diff --git a/Firmware/variants/1_75mm_MK25S-RAMBo13a-E3Dv6full.h b/Firmware/variants/1_75mm_MK25S-RAMBo13a-E3Dv6full.h
index f4a87788d..4248fce6f 100644
--- a/Firmware/variants/1_75mm_MK25S-RAMBo13a-E3Dv6full.h
+++ b/Firmware/variants/1_75mm_MK25S-RAMBo13a-E3Dv6full.h
@@ -10,6 +10,7 @@
 // Printer revision
 #define PRINTER_TYPE PRINTER_MK25S
 #define PRINTER_NAME PRINTER_MK25S_NAME
+#define PRINTER_NAME_ALTERNATE PRINTER_MK25_NAME //the other similar printer to this.
 #define PRINTER_MMU_TYPE PRINTER_MK25S_MMU2
 #define PRINTER_MMU_NAME PRINTER_MK25S_MMU2_NAME
 #define FILAMENT_SIZE "1_75mm_MK25S"
diff --git a/Firmware/variants/1_75mm_MK3-EINSy10a-E3Dv6full.h b/Firmware/variants/1_75mm_MK3-EINSy10a-E3Dv6full.h
index 454d5ac59..44ec28d82 100644
--- a/Firmware/variants/1_75mm_MK3-EINSy10a-E3Dv6full.h
+++ b/Firmware/variants/1_75mm_MK3-EINSy10a-E3Dv6full.h
@@ -11,6 +11,7 @@
 // Printer revision
 #define PRINTER_TYPE PRINTER_MK3
 #define PRINTER_NAME PRINTER_MK3_NAME
+#define PRINTER_NAME_ALTERNATE PRINTER_MK3S_NAME //the other similar printer to this.
 #define PRINTER_MMU_TYPE PRINTER_MK3_MMU2
 #define PRINTER_MMU_NAME PRINTER_MK3_MMU2_NAME
 #define FILAMENT_SIZE "1_75mm_MK3"
@@ -151,6 +152,7 @@
 // Filament sensor
 #define FILAMENT_SENSOR
 #define FILAMENT_SENSOR_TYPE FSENSOR_PAT9125
+#define FSENSOR_PROBING
 
 // Backlash - 
 //#define BACKLASH_X
diff --git a/Firmware/variants/1_75mm_MK3S-EINSy10a-E3Dv6full.h b/Firmware/variants/1_75mm_MK3S-EINSy10a-E3Dv6full.h
index c071a6dd8..1ac0bebc1 100644
--- a/Firmware/variants/1_75mm_MK3S-EINSy10a-E3Dv6full.h
+++ b/Firmware/variants/1_75mm_MK3S-EINSy10a-E3Dv6full.h
@@ -10,6 +10,7 @@
 // Printer revision
 #define PRINTER_TYPE PRINTER_MK3S
 #define PRINTER_NAME PRINTER_MK3S_NAME
+#define PRINTER_NAME_ALTERNATE PRINTER_MK3_NAME //the other similar printer to this.
 #define PRINTER_MMU_TYPE PRINTER_MK3S_MMU2
 #define PRINTER_MMU_NAME PRINTER_MK3S_MMU2_NAME
 #define FILAMENT_SIZE "1_75mm_MK3S"
@@ -153,6 +154,7 @@
 // Filament sensor
 #define FILAMENT_SENSOR
 #define FILAMENT_SENSOR_TYPE FSENSOR_IR_ANALOG
+#define FSENSOR_PROBING
 
 // Backlash - 
 //#define BACKLASH_X