diff --git a/radio/src/lcd.h b/radio/src/lcd.h
index 84e4741d7..a2f008a46 100644
--- a/radio/src/lcd.h
+++ b/radio/src/lcd.h
@@ -298,13 +298,6 @@ void lcdSetContrast();
   extern display_t lcd_buf[DISPLAY_BUF_SIZE];
 #endif
 
-#if defined(LUA)
-  extern bool lcd_locked;
-  #define LCD_LOCKED() lcd_locked
-#else
-  #define LCD_LOCKED() 0
-#endif
-
 char * strAppend(char * dest, const char * source);
 char * strAppendDate(char * str, bool time=false);
 char * strAppendFilename(char * dest, const char * filename, const int size);
diff --git a/radio/src/lcd_common.cpp b/radio/src/lcd_common.cpp
index 5d41e9d10..609871d0c 100644
--- a/radio/src/lcd_common.cpp
+++ b/radio/src/lcd_common.cpp
@@ -38,10 +38,6 @@
 
 display_t displayBuf[DISPLAY_BUF_SIZE];
 
-#if defined(LUA)
-bool lcd_locked = false;
-#endif
-
 void lcd_clear()
 {
   memset(displayBuf, 0, sizeof(displayBuf));
diff --git a/radio/src/lua.cpp b/radio/src/lua.cpp
index 0459ef942..dece1af6d 100644
--- a/radio/src/lua.cpp
+++ b/radio/src/lua.cpp
@@ -346,12 +346,6 @@ static int luaGetGeneralSettings(lua_State *L)
   return 1;
 }
 
-static int luaLcdLock(lua_State *L)
-{
-  lcd_locked = true;
-  return 0;
-}
-
 static int luaLcdClear(lua_State *L)
 {
   lcd_clear();
@@ -1522,7 +1516,6 @@ const luaL_Reg modelLib[] = {
 };
 
 const luaL_Reg lcdLib[] = {
-  { "lock", luaLcdLock },
   { "clear", luaLcdClear },
   { "getLastPos", luaLcdGetLastPos },
   { "drawPoint", luaLcdDrawPoint },
@@ -2029,8 +2022,6 @@ void luaDoGc()
 
 void luaTask(uint8_t evt)
 {
-  lcd_locked = false;
-
   uint32_t t0 = get_tmr10ms();
   static uint32_t lastLuaTime = 0;
   uint16_t interval = (lastLuaTime == 0 ? 0 : (t0 - lastLuaTime));
diff --git a/radio/src/opentx.cpp b/radio/src/opentx.cpp
index 9d28a366f..3a01a8842 100644
--- a/radio/src/opentx.cpp
+++ b/radio/src/opentx.cpp
@@ -2420,7 +2420,7 @@ void perMain()
     const char *warn = s_warning;
     uint8_t menu = s_menu_count;
 
-    if (!LCD_LOCKED()) {
+    if (!LUA_STANDALONE_SCRIPT_RUNNING()) {
       lcd_clear();
       if (menuEvent) {
         m_posVert = menuEvent == EVT_ENTRY_UP ? g_menuPos[g_menuStackPtr] : 0;
@@ -2436,7 +2436,7 @@ void perMain()
     luaTask(evt);
 #endif
 
-    if (!LCD_LOCKED()) {
+    if (!LUA_STANDALONE_SCRIPT_RUNNING()) {
       if (warn) DISPLAY_WARNING(evt);
 #if defined(NAVIGATION_MENUS)
       if (menu) {
diff --git a/radio/src/opentx.h b/radio/src/opentx.h
index bc8085e9f..1dc7eb6b8 100644
--- a/radio/src/opentx.h
+++ b/radio/src/opentx.h
@@ -1566,7 +1566,7 @@ enum AUDIO_SOUNDS {
   #define luaGetCpuUsed(idx) scriptInternalData[idx].instructions
   #define LUA_LOAD_MODEL_SCRIPTS()   luaState |= INTERPRETER_RELOAD_PERMANENT_SCRIPTS
   #define LUA_LOAD_MODEL_SCRIPT(idx) luaState |= INTERPRETER_RELOAD_PERMANENT_SCRIPTS
-
+  #define LUA_STANDALONE_SCRIPT_RUNNING() (luaState == INTERPRETER_RUNNING_STANDALONE_SCRIPT)
   // Lua PROTECT/UNPROTECT
   #include <setjmp.h>
   struct our_longjmp {
@@ -1583,6 +1583,7 @@ enum AUDIO_SOUNDS {
 #else
   #define LUA_LOAD_MODEL_SCRIPTS()
   #define LUA_LOAD_MODEL_SCRIPT(idx)
+  #define LUA_STANDALONE_SCRIPT_RUNNING() (0)
 #endif
 
 #if defined(CPUARM)