diff --git a/radio/src/gui/128x64/model_setup.cpp b/radio/src/gui/128x64/model_setup.cpp
index 9b7b08dc9..cbaa90cf4 100644
--- a/radio/src/gui/128x64/model_setup.cpp
+++ b/radio/src/gui/128x64/model_setup.cpp
@@ -962,14 +962,7 @@ void menuModelSetup(event_t event)
                   if (checkIncDec_Ret) {
                     g_model.moduleData[moduleIdx].setMultiProtocol(multiRfProto);
                     g_model.moduleData[moduleIdx].subType = 0;
-                    // Sensible default for DSM2 (same as for ppm): 7ch@22ms + Autodetect settings enabled
-                    if (g_model.moduleData[moduleIdx].getMultiProtocol() == MODULE_SUBTYPE_MULTI_DSM2) {
-                      g_model.moduleData[moduleIdx].multi.autoBindMode = 1;
-                    }
-                    else {
-                      g_model.moduleData[moduleIdx].multi.autoBindMode = 0;
-                    }
-                    g_model.moduleData[moduleIdx].multi.optionValue = 0;
+                    resetMultiProtocolsOptions(moduleIdx);
                   }
                 }
 #endif
@@ -1018,6 +1011,9 @@ void menuModelSetup(event_t event)
           switch (menuHorizontalPosition) {
             case 0:{
               CHECK_INCDEC_MODELVAR(event, g_model.moduleData[moduleIdx].subType, 0, getMaxMultiSubtype(moduleIdx));
+              if (checkIncDec_Ret) {
+                resetMultiProtocolsOptions(moduleIdx);
+              }
               break;
             }
           }
@@ -1458,7 +1454,7 @@ void menuModelSetup(event_t event)
       case ITEM_MODEL_SETUP_EXTERNAL_MODULE_OPTIONS:
       {
 #if defined(MULTIMODULE)
-        if (isModuleMultimodule(moduleIdx)) {
+        if (MULTIMODULE_PROTOCOL_KNOWN(moduleIdx)) {
           int optionValue = g_model.moduleData[moduleIdx].multi.optionValue;
 
           const uint8_t multi_proto = g_model.moduleData[moduleIdx].getMultiProtocol();
diff --git a/radio/src/gui/212x64/model_setup.cpp b/radio/src/gui/212x64/model_setup.cpp
index ef03b00ba..b8f373ee9 100644
--- a/radio/src/gui/212x64/model_setup.cpp
+++ b/radio/src/gui/212x64/model_setup.cpp
@@ -855,14 +855,7 @@ void menuModelSetup(event_t event)
                   if (checkIncDec_Ret) {
                     g_model.moduleData[EXTERNAL_MODULE].setMultiProtocol(multiRfProto);
                     g_model.moduleData[EXTERNAL_MODULE].subType = 0;
-                    // Sensible default for DSM2 (same as for ppm): 7ch@22ms + Autodetect settings enabled
-                    if (g_model.moduleData[EXTERNAL_MODULE].getMultiProtocol() == MODULE_SUBTYPE_MULTI_DSM2) {
-                      g_model.moduleData[EXTERNAL_MODULE].multi.autoBindMode = 1;
-                    }
-                    else {
-                      g_model.moduleData[EXTERNAL_MODULE].multi.autoBindMode = 0;
-                    }
-                    g_model.moduleData[EXTERNAL_MODULE].multi.optionValue = 0;
+                    resetMultiProtocolsOptions(EXTERNAL_MODULE);
                   }
                 }
 #endif
@@ -884,18 +877,10 @@ void menuModelSetup(event_t event)
 
 #if defined(MULTIMODULE)
               case 2:
-                if (g_model.moduleData[EXTERNAL_MODULE].multi.customProto) {
-                  g_model.moduleData[EXTERNAL_MODULE].setMultiProtocol(checkIncDec(event, g_model.moduleData[EXTERNAL_MODULE].getMultiProtocol(), 0, MULTI_MAX_PROTOCOLS, EE_MODEL));
-                  break;
+                CHECK_INCDEC_MODELVAR(event, g_model.moduleData[EXTERNAL_MODULE].subType, 0, getMaxMultiSubtype(EXTERNAL_MODULE));
+                if (checkIncDec_Ret) {
+                  resetMultiProtocolsOptions(EXTERNAL_MODULE);
                 }
-                else {
-                  CHECK_INCDEC_MODELVAR(event, g_model.moduleData[EXTERNAL_MODULE].subType, 0, getMaxMultiSubtype(EXTERNAL_MODULE));
-                }
-                break;
-
-              case 3:
-                // Custom protocol, third column is subtype
-                CHECK_INCDEC_MODELVAR(event, g_model.moduleData[EXTERNAL_MODULE].subType, 0, 7);
                 break;
 #endif
             }
@@ -1228,7 +1213,7 @@ void menuModelSetup(event_t event)
        uint8_t moduleIdx = CURRENT_MODULE_EDITED(k);
 #if defined(MULTIMODULE)
 
-       if (isModuleMultimodule(moduleIdx)) {
+       if (MULTIMODULE_PROTOCOL_KNOWN(moduleIdx)) {
          int optionValue = g_model.moduleData[moduleIdx].multi.optionValue;
 
          const uint8_t multi_proto = g_model.moduleData[EXTERNAL_MODULE].getMultiProtocol();
diff --git a/radio/src/gui/480x272/model_setup.cpp b/radio/src/gui/480x272/model_setup.cpp
index 15f1b58c6..ef2be344f 100644
--- a/radio/src/gui/480x272/model_setup.cpp
+++ b/radio/src/gui/480x272/model_setup.cpp
@@ -1117,16 +1117,7 @@ bool menuModelSetup(event_t event)
                   if (checkIncDec_Ret) {
                     g_model.moduleData[moduleIdx].setMultiProtocol(multiRfProto);
                     g_model.moduleData[moduleIdx].subType = 0;
-                    // Sensible default for DSM2 (same as for ppm): 7ch@22ms + Autodetect settings enabled
-                    if (g_model.moduleData[moduleIdx].getMultiProtocol() == MODULE_SUBTYPE_MULTI_DSM2) {
-                      g_model.moduleData[moduleIdx].multi.autoBindMode = 1;
-                    }
-                    else {
-                      g_model.moduleData[moduleIdx].multi.autoBindMode = 0;
-                    }
-                    g_model.moduleData[moduleIdx].multi.optionValue = 0;
-                    g_model.moduleData[moduleIdx].multi.disableTelemetry = 0;
-                    g_model.moduleData[moduleIdx].multi.disableMapping = 0;
+                    resetMultiProtocolsOptions(moduleIdx);
                   }
                 }
 #endif
@@ -1146,6 +1137,9 @@ bool menuModelSetup(event_t event)
 #if defined(MULTIMODULE)
               case 2: {
                 CHECK_INCDEC_MODELVAR(event, g_model.moduleData[moduleIdx].subType, 0, getMaxMultiSubtype(moduleIdx));
+                if (checkIncDec_Ret) {
+                  resetMultiProtocolsOptions(moduleIdx);
+                }
                 break;
               }
 #endif
@@ -1616,7 +1610,7 @@ bool menuModelSetup(event_t event)
       case ITEM_MODEL_SETUP_EXTERNAL_MODULE_OPTIONS:
       {
 #if defined(MULTIMODULE)
-        if (isModuleMultimodule(moduleIdx)) {
+        if (MULTIMODULE_PROTOCOL_KNOWN(moduleIdx)) {
           int optionValue = g_model.moduleData[moduleIdx].multi.optionValue;
 
           const uint8_t multi_proto = g_model.moduleData[moduleIdx].getMultiProtocol();
diff --git a/radio/src/gui/gui_common.h b/radio/src/gui/gui_common.h
index 297808555..806ceb751 100644
--- a/radio/src/gui/gui_common.h
+++ b/radio/src/gui/gui_common.h
@@ -161,43 +161,6 @@ inline uint8_t MODULE_CHANNELS_ROWS(int moduleIdx)
 
 
 #if defined(MULTIMODULE)
-// When using packed, the pointer in here end up not being aligned, which clang and gcc complain about
-// Keep the order of the fields that the so that the size stays small
-struct mm_options_strings {
-  static const char* options[];
-};
-
-struct mm_protocol_definition {
-    uint8_t protocol;
-    uint8_t maxSubtype;
-    bool failsafe;
-    bool disable_ch_mapping;
-    const char *subTypeString;
-    const char *optionsstr;
-};
-
-const mm_protocol_definition *getMultiProtocolDefinition (uint8_t protocol);
-
-inline uint8_t getMaxMultiSubtype(uint8_t moduleIdx)
-{
-  MultiModuleStatus &status = getMultiModuleStatus(moduleIdx);
-  const mm_protocol_definition *pdef = getMultiProtocolDefinition(g_model.moduleData[moduleIdx].getMultiProtocol());
-
-  if (g_model.moduleData[moduleIdx].getMultiProtocol() == MODULE_SUBTYPE_MULTI_FRSKY) {
-    return 5;
-  }
-
-  if (g_model.moduleData[moduleIdx].getMultiProtocol() > MODULE_SUBTYPE_MULTI_LAST) {
-    if (status.isValid())
-      return (status.protocolSubNbr == 0 ? 0 : status.protocolSubNbr - 1);
-    else
-      return 7;
-  }
-  else {
-    return max((uint8_t )(status.protocolSubNbr == 0 ? 0 : status.protocolSubNbr - 1), pdef->maxSubtype);
-  }
-}
-
 inline uint8_t MULTI_DISABLE_CHAN_MAP_ROW(uint8_t moduleIdx)
 {
   if (!isModuleMultimodule(moduleIdx))
@@ -223,6 +186,24 @@ inline bool isMultiProtocolSelectable(int protocol)
   return protocol != MODULE_SUBTYPE_MULTI_SCANNER;
 }
 
+inline bool MULTIMODULE_PROTOCOL_KNOWN(uint8_t moduleIdx)
+{
+  if (!isModuleMultimodule(moduleIdx)) {
+    return false;
+  }
+
+  if (g_model.moduleData[moduleIdx].getMultiProtocol() < MODULE_SUBTYPE_MULTI_LAST) {
+    return true;
+  }
+
+  MultiModuleStatus &status = getMultiModuleStatus(moduleIdx);
+  if (status.isValid()) {
+    return status.protocolValid();
+  }
+
+  return false;
+}
+
 inline bool MULTIMODULE_HAS_SUBTYPE(uint8_t moduleIdx)
 {
   MultiModuleStatus &status = getMultiModuleStatus(moduleIdx);
@@ -266,7 +247,7 @@ inline uint8_t MULTIMODULE_HASOPTIONS(uint8_t moduleIdx)
   return status.optionDisp;
 }
 
-#define MULTIMODULE_MODULE_ROWS(moduleIdx)      isModuleMultimodule(moduleIdx) ? (uint8_t) 0 : HIDDEN_ROW, isModuleMultimodule(moduleIdx) ? (uint8_t) 0 : HIDDEN_ROW, MULTI_DISABLE_CHAN_MAP_ROW(moduleIdx), // AUTOBIND, DISABLE TELEM, DISABLE CN.MAP
+#define MULTIMODULE_MODULE_ROWS(moduleIdx)      MULTIMODULE_PROTOCOL_KNOWN(moduleIdx) ? (uint8_t) 0 : HIDDEN_ROW, MULTIMODULE_PROTOCOL_KNOWN(moduleIdx) ? (uint8_t) 0 : HIDDEN_ROW, MULTI_DISABLE_CHAN_MAP_ROW(moduleIdx), // AUTOBIND, DISABLE TELEM, DISABLE CN.MAP
 #define MULTIMODULE_STATUS_ROWS(moduleIdx)      isModuleMultimodule(moduleIdx) ? TITLE_ROW : HIDDEN_ROW, (isModuleMultimodule(moduleIdx) && getMultiSyncStatus(moduleIdx).isValid()) ? TITLE_ROW : HIDDEN_ROW,
 #define MULTIMODULE_MODE_ROWS(moduleIdx)        (g_model.moduleData[moduleIdx].multi.customProto) ? (uint8_t) 3 : MULTIMODULE_HAS_SUBTYPE(moduleIdx) ? (uint8_t)2 : (uint8_t)1
 #define MULTIMODULE_SUBTYPE_ROWS(moduleIdx)     isModuleMultimodule(moduleIdx) ? MULTIMODULE_RFPROTO_COLUMNS(moduleIdx) : HIDDEN_ROW,
@@ -282,7 +263,7 @@ inline uint8_t MULTIMODULE_HASOPTIONS(uint8_t moduleIdx)
 
 #define FAILSAFE_ROWS(moduleIdx)               isModuleFailsafeAvailable(moduleIdx) ? (g_model.moduleData[moduleIdx].failsafeMode==FAILSAFE_CUSTOM ? (uint8_t)1 : (uint8_t)0) : HIDDEN_ROW
 #define MODULE_OPTION_ROW(moduleIdx)           (isModuleR9MNonAccess(moduleIdx) || isModuleSBUS(moduleIdx)  ? TITLE_ROW : MULTIMODULE_OPTIONS_ROW(moduleIdx))
-#define MODULE_POWER_ROW(moduleIdx)            (isModuleMultimodule(moduleIdx) || isModuleR9MNonAccess(moduleIdx)) ? (isModuleR9MLiteNonPro(moduleIdx) ? (isModuleR9M_FCC_VARIANT(moduleIdx) ? READONLY_ROW : (uint8_t)0) : (uint8_t)0) : HIDDEN_ROW
+#define MODULE_POWER_ROW(moduleIdx)            (MULTIMODULE_PROTOCOL_KNOWN(moduleIdx) || isModuleR9MNonAccess(moduleIdx)) ? (isModuleR9MLiteNonPro(moduleIdx) ? (isModuleR9M_FCC_VARIANT(moduleIdx) ? READONLY_ROW : (uint8_t)0) : (uint8_t)0) : HIDDEN_ROW
 
 void editStickHardwareSettings(coord_t x, coord_t y, int idx, event_t event, LcdFlags flags);
 
diff --git a/radio/src/opentx.cpp b/radio/src/opentx.cpp
index 65e682496..3425802d6 100644
--- a/radio/src/opentx.cpp
+++ b/radio/src/opentx.cpp
@@ -890,7 +890,12 @@ void checkFailsafe()
 void checkRSSIAlarmsDisabled()
 {
   if (g_model.rssiAlarms.disabled) {
-    ALERT(STR_RSSIALARM_WARN, STR_NO_RSSIALARM, AU_ERROR);
+#if !defined(INTERNAL_MODULE)
+    if (!isModuleMultimoduleDSM2(EXTERNAL_MODULE))
+#else
+    if (!isModuleMultimoduleDSM2(INTERNAL_MODULE) && !isModuleMultimoduleDSM2(EXTERNAL_MODULE))
+#endif
+      ALERT(STR_RSSIALARM_WARN, STR_NO_RSSIALARM, AU_ERROR);
   }
 }
 
diff --git a/radio/src/pulses/modules_helpers.h b/radio/src/pulses/modules_helpers.h
index f7cdaee71..ecc3226d7 100644
--- a/radio/src/pulses/modules_helpers.h
+++ b/radio/src/pulses/modules_helpers.h
@@ -32,6 +32,43 @@
 #define CROSSFIRE_CHANNELS_COUNT        16
 
 #if defined(MULTIMODULE)
+// When using packed, the pointer in here end up not being aligned, which clang and gcc complain about
+// Keep the order of the fields that the so that the size stays small
+struct mm_options_strings {
+  static const char* options[];
+};
+
+struct mm_protocol_definition {
+  uint8_t protocol;
+  uint8_t maxSubtype;
+  bool failsafe;
+  bool disable_ch_mapping;
+  const char *subTypeString;
+  const char *optionsstr;
+};
+
+const mm_protocol_definition *getMultiProtocolDefinition (uint8_t protocol);
+
+inline uint8_t getMaxMultiSubtype(uint8_t moduleIdx)
+{
+  MultiModuleStatus &status = getMultiModuleStatus(moduleIdx);
+  const mm_protocol_definition *pdef = getMultiProtocolDefinition(g_model.moduleData[moduleIdx].getMultiProtocol());
+
+  if (g_model.moduleData[moduleIdx].getMultiProtocol() == MODULE_SUBTYPE_MULTI_FRSKY) {
+    return 5;
+  }
+
+  if (g_model.moduleData[moduleIdx].getMultiProtocol() > MODULE_SUBTYPE_MULTI_LAST) {
+    if (status.isValid())
+      return (status.protocolSubNbr == 0 ? 0 : status.protocolSubNbr - 1);
+    else
+      return 7;
+  }
+  else {
+    return max((uint8_t )(status.protocolSubNbr == 0 ? 0 : status.protocolSubNbr - 1), pdef->maxSubtype);
+  }
+}
+
 inline bool isModuleMultimodule(uint8_t idx)
 {
   return g_model.moduleData[idx].type == MODULE_TYPE_MULTIMODULE;
@@ -357,8 +394,14 @@ inline bool isModuleFailsafeAvailable(uint8_t moduleIdx)
 
 #if defined(MULTIMODULE)
   if (isModuleMultimodule(moduleIdx)){
-    MultiModuleStatus& status = getMultiModuleStatus(moduleIdx);
-    return status.isValid() && status.supportsFailsafe();
+    MultiModuleStatus &status = getMultiModuleStatus(moduleIdx);
+    if (status.isValid()) {
+      return status.supportsFailsafe();
+    }
+    else {
+      const mm_protocol_definition * pdef = getMultiProtocolDefinition(g_model.moduleData[moduleIdx].getMultiProtocol());
+      return pdef->failsafe;
+    }
   }
 #endif
 
@@ -497,4 +540,24 @@ inline void setModuleType(uint8_t moduleIdx, uint8_t moduleType)
 
 extern bool isExternalAntennaEnabled();
 
+#if defined(MULTIMODULE)
+inline void resetMultiProtocolsOptions(uint8_t moduleIdx)
+{
+  if (!isModuleMultimodule(moduleIdx))
+    return;
+
+  // Sensible default for DSM2 (same as for ppm): 7ch@22ms + Autodetect settings enabled
+  if (g_model.moduleData[moduleIdx].getMultiProtocol() == MODULE_SUBTYPE_MULTI_DSM2) {
+    g_model.moduleData[moduleIdx].multi.autoBindMode = 1;
+  }
+  else {
+    g_model.moduleData[moduleIdx].multi.autoBindMode = 0;
+  }
+  g_model.moduleData[moduleIdx].multi.optionValue = 0;
+  g_model.moduleData[moduleIdx].multi.disableTelemetry = 0;
+  g_model.moduleData[moduleIdx].multi.disableMapping = 0;
+  g_model.moduleData[moduleIdx].multi.lowPowerMode = 0;
+}
+#endif
+
 #endif // _MODULES_HELPERS_H_