diff --git a/src/model_menus.cpp b/src/model_menus.cpp
index e6499f09f..658a4c780 100644
--- a/src/model_menus.cpp
+++ b/src/model_menus.cpp
@@ -562,6 +562,7 @@ void menuProcModel(uint8_t event)
         }
       }
 
+#if defined(PXX)
       if (g_model.protocol == PROTO_PXX) {
         lcd_putsAtt(PARAM_OFS, y, STR_SYNCMENU, ((sub==subN && m_posHorz==1) ? INVERS : 0));
         if (sub==subN && m_posHorz==1) {
@@ -573,6 +574,7 @@ void menuProcModel(uint8_t event)
           }
         }
       }
+#endif
     }
 #endif
   }
diff --git a/src/open9x.cpp b/src/open9x.cpp
index ba8f41e66..945f59fbf 100644
--- a/src/open9x.cpp
+++ b/src/open9x.cpp
@@ -2333,9 +2333,9 @@ int main(void)
   uint8_t cModel = g_eeGeneral.currModel;
 
 #if defined (PCBV3)
-  if (~MCUSR & (1 << WDRF)) {
+   if (MCUSR != (1 << PORF))  {
 #else
-  if (~MCUCSR & (1 << WDRF)) {
+   if (MCUCSR != (1 << PORF))  {
 #endif
 
 #ifdef SPLASH