Index: firmware/App/Modes/ModeTreatmentParams.c
===================================================================
diff -u -r693f9ed31c3f92b6f71b22ce0ae3a6f29ae92394 -r7b823539be3fde41aa676263188d1af679b2f411
--- firmware/App/Modes/ModeTreatmentParams.c	(.../ModeTreatmentParams.c)	(revision 693f9ed31c3f92b6f71b22ce0ae3a6f29ae92394)
+++ firmware/App/Modes/ModeTreatmentParams.c	(.../ModeTreatmentParams.c)	(revision 7b823539be3fde41aa676263188d1af679b2f411)
@@ -85,6 +85,7 @@
 
 static BOOL validTreatParamsReceived = FALSE;                           ///< Flag indicates user has provided treatment parameters.
 static BOOL treatParamsConfirmed = FALSE;                               ///< Flag indicates user has confirmed the treatment parameters.
+static BOOL treatParamsRejected = FALSE;                                ///< Flag indicates user has rejected the treatment parameters.
 static BOOL treatmentCancelled = FALSE;                                 ///< Flag indicates user has cancelled the treatment.
 
 // ********** private function prototypes **********
@@ -130,6 +131,7 @@
 
     validTreatParamsReceived = FALSE;
     treatParamsConfirmed = FALSE;
+    treatParamsRejected = FALSE;
     treatmentCancelled = FALSE;
 
     // temporary test code.  TODO - remove later
@@ -201,6 +203,28 @@
 
 /*********************************************************************//**
  * @brief
+ * The signalUserRejectionOfTreatmentParameters function sets the user
+ * rejection flag signaling user has rejected treatment parameters.
+ * @details
+ * Inputs : none
+ * Outputs : treatParamsRejected
+ * @return TRUE if rejection accepted, FALSE if not
+ *************************************************************************/
+BOOL signalUserRejectionOfTreatmentParameters( void )
+{
+    BOOL result = FALSE;
+
+    if ( ( MODE_TPAR == getCurrentOperationMode() ) && ( HD_TREATMENT_PARAMS_MODE_STATE_WAIT_4_UI_2_CONFIRM == currentTreatmentParamsState ) )
+    {
+        treatParamsRejected = TRUE;
+        result = TRUE;
+    }
+
+    return result;
+}
+
+/*********************************************************************//**
+ * @brief
  * The signalUserCancelTreatment function sets the cancelled treatment
  * flag signaling the user has cancelled the treatment.
  * @details
@@ -336,12 +360,18 @@
 
         treatParamsConfirmed = FALSE;
     }
+    else if ( TRUE == treatParamsRejected )
+    {
+        treatParamsRejected = FALSE;
+        // user rejected last parameter set, so reset them and wait for new set
+        resetAllTreatmentParameters();
+        result = HD_TREATMENT_PARAMS_MODE_STATE_WAIT_4_UI_2_SEND;
+    }
     else if ( TRUE == treatmentCancelled )
     {
+        treatmentCancelled = FALSE;
         // go back to standby mode
         requestNewOperationMode( MODE_STAN );
-
-        treatmentCancelled = FALSE;
     }
 
     return result;