diff --git a/src/slic3r/GUI/DeviceManager.cpp b/src/slic3r/GUI/DeviceManager.cpp
index 85fc4f220..0630ba4c3 100644
--- a/src/slic3r/GUI/DeviceManager.cpp
+++ b/src/slic3r/GUI/DeviceManager.cpp
@@ -798,23 +798,26 @@ void MachineObject::_parse_tray_now(std::string tray_now)
     } else {
         try {
             int tray_now_int = atoi(tray_now.c_str());
-            if (tray_now_int == 255) {
+            if (tray_now_int == VIRTUAL_TRAY_MAIN_ID) {
                 m_ams_id = "0";
                 m_tray_id = "0";
                 m_extder_data.extders[MAIN_NOZZLE_ID].snow.ams_id  = "";
                 m_extder_data.extders[MAIN_NOZZLE_ID].snow.slot_id = "";
             }
+            else if (tray_now_int == VIRTUAL_TRAY_DEPUTY_ID) {
+                m_extder_data.extders[MAIN_NOZZLE_ID].snow.ams_id  = std::to_string(VIRTUAL_TRAY_MAIN_ID);
+                m_extder_data.extders[MAIN_NOZZLE_ID].snow.slot_id = "0";
+            }
             else {
-                if (tray_now_int == 254) {
-                    m_extder_data.extders[MAIN_NOZZLE_ID].snow.ams_id  = std::to_string(VIRTUAL_TRAY_MAIN_ID);
-                    m_extder_data.extders[MAIN_NOZZLE_ID].snow.slot_id = "0";
-                }
-                else {
-                    m_ams_id  = std::to_string(tray_now_int >> 2);
-                    m_tray_id = std::to_string(tray_now_int & 0x3);
-                    m_extder_data.extders[MAIN_NOZZLE_ID].snow.ams_id = m_ams_id;
-                    m_extder_data.extders[MAIN_NOZZLE_ID].snow.slot_id = m_tray_id;
+                if (tray_now_int >= 0x80 &&  tray_now_int <= 0x87) {
+                    m_ams_id = std::to_string(tray_now_int);
+                } else {
+                    m_ams_id = std::to_string(tray_now_int >> 2);
                 }
+
+                m_tray_id                                          = std::to_string(tray_now_int & 0x3);
+                m_extder_data.extders[MAIN_NOZZLE_ID].snow.ams_id  = m_ams_id;
+                m_extder_data.extders[MAIN_NOZZLE_ID].snow.slot_id = m_tray_id;
             }
         }
         catch(...) {
@@ -3745,7 +3748,7 @@ int MachineObject::parse_json(std::string payload, bool key_field_only)
                         }
 
                         /*the param is invalid in np for Yeshu*/
-                        if (!check_enable_np(jj) && jj.contains("hw_switch_state")) {
+                        if (jj.contains("hw_switch_state")) {
                             hw_switch_state = jj["hw_switch_state"].get<int>();
                             m_extder_data.extders[MAIN_NOZZLE_ID].ext_has_filament = hw_switch_state;
                         }
@@ -4517,21 +4520,6 @@ int MachineObject::parse_json(std::string payload, bool key_field_only)
                                     if (ams_it == amsList.end()) {
                                         Ams* new_ams    = new Ams(ams_id, nozzle_id, type_id);
                                         new_ams->info   = info;
-
-                                        try {
-                                            if (!ams_id.empty()) {
-                                                int ams_id_int = atoi(ams_id.c_str());
-
-                                                if (type_id < 4 ) {
-                                                    new_ams->is_exists = (ams_exist_bits & (1 << ams_id_int)) != 0 ? true : false;
-                                                } else {
-                                                    new_ams->is_exists = get_flag_bits(ams_exist_bits, 4 + (ams_id_int - 128));
-                                                }
-                                            }
-                                        }
-                                        catch (...) {
-                                            ;
-                                        }
                                         amsList.insert(std::make_pair(ams_id, new_ams));
                                         // new ams added event
                                         curr_ams = new_ams;
@@ -4545,6 +4533,25 @@ int MachineObject::parse_json(std::string payload, bool key_field_only)
                                     }
                                     if (!curr_ams) continue;
 
+                                    /*set ams type flag*/
+                                    curr_ams->type = type_id;
+
+
+                                    /*set ams exist flag*/
+                                    try {
+                                        if (!ams_id.empty()) {
+                                            int ams_id_int = atoi(ams_id.c_str());
+
+                                            if (type_id < 4) {
+                                                curr_ams->is_exists = (ams_exist_bits & (1 << ams_id_int)) != 0 ? true : false;
+                                            } else {
+                                                curr_ams->is_exists = get_flag_bits(ams_exist_bits, 4 + (ams_id_int - 128));
+                                            }
+                                        }
+                                    } catch (...) {
+                                        ;
+                                    }
+
                                     if (it->contains("dry_time") && (*it)["dry_time"].is_number())
                                     {
                                         curr_ams->left_dry_time = (*it)["dry_time"].get<int>();
diff --git a/src/slic3r/GUI/Widgets/AMSControl.cpp b/src/slic3r/GUI/Widgets/AMSControl.cpp
index 745166d0f..e29939569 100644
--- a/src/slic3r/GUI/Widgets/AMSControl.cpp
+++ b/src/slic3r/GUI/Widgets/AMSControl.cpp
@@ -1130,6 +1130,7 @@ AMSRoadShowMode AMSControl::findFirstMode(AMSPanelPos pos) {
             }
         }
         if (item->second->get_ams_model() == AMSModel::EXT_AMS && item->second->get_ext_type() == AMSModelOriginType::LITE_EXT) return AMSRoadShowMode::AMS_ROAD_MODE_AMS_LITE;
+        if (item->second->get_ams_model() == AMSModel::N3S_AMS) return AMSRoadShowMode::AMS_ROAD_MODE_SINGLE_N3S;
         return AMSRoadShowMode::AMS_ROAD_MODE_SINGLE;
     }
 }
@@ -1400,6 +1401,10 @@ void AMSControl::SwitchAms(std::string ams_id)
                     }
                     else {
                         AMSRoadShowMode mode = AMSRoadShowMode::AMS_ROAD_MODE_SINGLE;
+
+                        if (item->get_ams_model() == AMSModel::N3S_AMS)
+                            mode = AMSRoadShowMode::AMS_ROAD_MODE_SINGLE_N3S;
+
                         for (auto it : pair_id) {
                             if (it.first == ams_id || it.second == ams_id) {
                                 mode = AMSRoadShowMode::AMS_ROAD_MODE_DOUBLE;
@@ -1521,9 +1526,10 @@ void AMSControl::SetAmsStep(std::string ams_id, std::string canid, AMSPassRoadTy
     }
 
     //Set path length in different case
+    model  = ams->get_ams_model();
+
     if (ams->get_can_count() == GENERIC_AMS_SLOT_NUM) {
         length = left ? 129 : 145;
-        model  = ams->get_ams_model();
     } else if (ams->get_can_count() == 1) {
         for (auto it : pair_id){
             if (it.first == ams_id){
@@ -1537,8 +1543,12 @@ void AMSControl::SetAmsStep(std::string ams_id, std::string canid, AMSPassRoadTy
                 break;
             }
         }
-        model = ams->get_ams_model();
+
+        if (!in_pair && model == N3S_AMS) {
+            length = left ? 129 : 232;
+        }
     }
+
     if (model == AMSModel::AMS_LITE){
         length = left ? 145 : 45;
     }
diff --git a/src/slic3r/GUI/Widgets/AMSItem.cpp b/src/slic3r/GUI/Widgets/AMSItem.cpp
index b808a2567..bbad3c795 100644
--- a/src/slic3r/GUI/Widgets/AMSItem.cpp
+++ b/src/slic3r/GUI/Widgets/AMSItem.cpp
@@ -2328,6 +2328,10 @@ void AMSRoadDownPart::doRender(wxDC& dc)
             dc.DrawLine(left_nozzle_pos.x - FromDIP(218), 0, left_nozzle_pos.x - FromDIP(218), (size.y / 2));
             break;
         case AMSRoadShowMode::AMS_ROAD_MODE_SINGLE:
+            dc.DrawLine(left_nozzle_pos.x - FromDIP(192), (size.y / 2), left_nozzle_pos.x, (size.y / 2));
+            dc.DrawLine(left_nozzle_pos.x - FromDIP(192), 0, left_nozzle_pos.x - FromDIP(192), (size.y / 2));
+            break;
+        case AMSRoadShowMode::AMS_ROAD_MODE_SINGLE_N3S:
             dc.DrawLine(left_nozzle_pos.x - FromDIP((129)), (size.y / 2), left_nozzle_pos.x, (size.y / 2));
             dc.DrawLine(left_nozzle_pos.x - FromDIP((129)), 0, left_nozzle_pos.x - FromDIP((129)), (size.y / 2));
             break;
@@ -2353,6 +2357,10 @@ void AMSRoadDownPart::doRender(wxDC& dc)
             dc.DrawLine(right_nozzle_pos.x, (size.y / 2), right_nozzle_pos.x + FromDIP(68), (size.y / 2));
             dc.DrawLine(right_nozzle_pos.x + FromDIP(68), 0, right_nozzle_pos.x + FromDIP(68), (size.y / 2));
             break;
+        case AMSRoadShowMode::AMS_ROAD_MODE_SINGLE_N3S:
+            dc.DrawLine(left_nozzle_pos.x - FromDIP((129)), (size.y / 2), left_nozzle_pos.x, (size.y / 2));
+            dc.DrawLine(left_nozzle_pos.x - FromDIP((129)), 0, left_nozzle_pos.x - FromDIP((129)), (size.y / 2));
+            break;
         case AMSRoadShowMode::AMS_ROAD_MODE_AMS_LITE:
             dc.DrawLine(left_nozzle_pos.x, (size.y / 2), left_nozzle_pos.x + FromDIP(145), (size.y / 2));
             dc.DrawLine(left_nozzle_pos.x + FromDIP(145), 0, left_nozzle_pos.x + FromDIP(145), (size.y / 2));
diff --git a/src/slic3r/GUI/Widgets/AMSItem.hpp b/src/slic3r/GUI/Widgets/AMSItem.hpp
index 233e9b476..0383a6e86 100644
--- a/src/slic3r/GUI/Widgets/AMSItem.hpp
+++ b/src/slic3r/GUI/Widgets/AMSItem.hpp
@@ -72,6 +72,7 @@ enum class AMSRoadShowMode : int {
     AMS_ROAD_MODE_FOUR,
     AMS_ROAD_MODE_DOUBLE,
     AMS_ROAD_MODE_SINGLE,
+    AMS_ROAD_MODE_SINGLE_N3S,
     AMS_ROAD_MODE_AMS_LITE,
     AMS_ROAD_MODE_NONE
 };