handle warnings better

Author: jurgelenas

src/SCRIPTS/TOOLS/ExpressLRS/protocol.lua

@@ -162,6 +162,14 @@ function Protocol.isConnected()
   return bit32.btest(Protocol.elrsFlags, 1)
 end
 
+function Protocol.isModelMismatch()
+  return bit32.btest(Protocol.elrsFlags, 0x04)
+end
+
+function Protocol.hasCriticalError()
+  return Protocol.elrsFlags > Protocol.CRSF.ELRS_FLAGS_WARNING_THRESHOLD
+end
+
 -- Response timeout for PARAMETER_READ:
 -- 0.5s for local TX module, 5s for remote devices relayed over air link.
 function Protocol.fieldResponseTimeout()

src/SCRIPTS/TOOLS/ExpressLRS/ui/lvgl.lua

@@ -584,7 +584,7 @@ local function handleWarning()
   end
   if Protocol.elrsFlags > Protocol.CRSF.ELRS_FLAGS_STATUS_MASK then
     if not UI.warningDialog and not UI.warningDismissed then
-      if Protocol.elrsFlagsInfo == "Model Mismatch" then
+      if Protocol.isModelMismatch() then
         UI.warningDialog = ModelMismatchDialog.show(function()
           UI.warningDismissed = true
           UI.warningDismissedAt = getTime()
@@ -593,7 +593,7 @@ local function handleWarning()
           UI.warningDismissed = true
           App.shouldExit = true
         end)
-      else
+      elseif Protocol.hasCriticalError() then
         Dialogs.showMessage({
           title = "Warning",
           message = Protocol.elrsFlagsInfo,