From ed04c24ba09fb3b066fa8fb3b4cf128ef949fb23 Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Gu=C3=B0ni=20M=C3=A1r=20Gilbert?= <gudni.m.g@gmail.com>
Date: Sat, 18 Jun 2022 10:08:54 +0000
Subject: [PATCH] Implement 'Filament not loaded' option for M600 with MMU

---
 Firmware/Marlin_main.cpp | 10 ++++++++--
 1 file changed, 8 insertions(+), 2 deletions(-)

diff --git a/Firmware/Marlin_main.cpp b/Firmware/Marlin_main.cpp
index f564cad26..a61d5d83f 100644
--- a/Firmware/Marlin_main.cpp
+++ b/Firmware/Marlin_main.cpp
@@ -11344,8 +11344,14 @@ void M600_check_state(float nozzle_temp)
         // Filament failed to load so load it again
         case 2:
             if (MMU2::mmu2.Enabled()){
-//@@TODO                mmu_M600_load_filament(false, nozzle_temp); //nonautomatic load; change to "wrong filament loaded" option?
-                
+                // Unload filament
+                mmu_M600_unload_filament();
+
+                // Ask to remove any old filament and load new
+                mmu_M600_wait_and_beep();
+
+                // After user clicks knob, MMU will load the filament
+                mmu_M600_load_filament(false, nozzle_temp);
             } else {
                 M600_load_filament_movements();
             }