Index: firmware/App/Modes/OperationModes.c
===================================================================
diff -u -rc67def50892f9a7c2f1f22985b5351465a8f6773 -r933a18d740285e70be9d00696ed0f5a5381bc8e4
--- firmware/App/Modes/OperationModes.c	(.../OperationModes.c)	(revision c67def50892f9a7c2f1f22985b5351465a8f6773)
+++ firmware/App/Modes/OperationModes.c	(.../OperationModes.c)	(revision 933a18d740285e70be9d00696ed0f5a5381bc8e4)
@@ -43,6 +43,7 @@
 // ********** private data **********
 
 static volatile BOOL modeRequest[ NUM_OF_MODES - 1 ];       ///< Pending operation mode change requests.
+static HD_OP_MODE_T lastMode = MODE_INIT;                   ///< Last operation mode prior to current mode.
 static HD_OP_MODE_T currentMode = MODE_INIT;                ///< Current operation mode.
 static U32 currentSubMode = 0;                              ///< The currently active state of the active mode.
 static U32 broadcastModeIntervalCtr = 11;                   ///< Interval counter used to determine when to broadcast operation mode.  Initialize to 11 to stagger broadcast.
@@ -124,6 +125,7 @@
     if ( currentMode != newMode )
     {
         // handle transition to new mode
+        lastMode = currentMode;
         transitionToNewOperationMode( newMode );
         currentMode = newMode;
     }