diff --git a/src/app/ScreenManager.cpp b/src/app/ScreenManager.cpp
index b3b9ce4..6b6960d 100644
--- a/src/app/ScreenManager.cpp
+++ b/src/app/ScreenManager.cpp
@@ -295,13 +295,13 @@ boolean ScreenManager::displayView(const uint8_t UID)
   return _error == OK;
 }
 
-void ScreenManager::displayNextView()
+boolean ScreenManager::displayNextView()
 {
   _autoOFFDelayRef = millis();
-  if(!_enabled) return;
+  if(!_enabled) return false;
   _forceRefresh = true;
   _error = OK;
-  if(isListEmpty(_viewLinkedList))return;
+  if(isListEmpty(_viewLinkedList))return false;
 
   if(_currentView == NO_CURRENT_VIEW)
   {
@@ -328,15 +328,16 @@ void ScreenManager::displayNextView()
   }
 
   run();
+  return _error == OK;
 }
 
-void ScreenManager::displayPreviousView()
+boolean ScreenManager::displayPreviousView()
 {
   _autoOFFDelayRef = millis();
-  if(!_enabled) return;
+  if(!_enabled) return false;
   _forceRefresh = true;
   _error = OK;
-  if(isListEmpty(_tail))return;
+  if(isListEmpty(_tail))return false;
 
   if(_currentView == NO_CURRENT_VIEW)
   {
@@ -363,6 +364,7 @@ void ScreenManager::displayPreviousView()
   }
 
   run();
+  return _error == OK;
 }
 
 void ScreenManager::invertDisplayColor(const boolean inverted)