Index: firmware/App/Services/SystemComm.c
===================================================================
diff -u -r4164cba570c42566aee10d7cce23c3cea0d903ee -r01470ee3c64ededcc77a4f7378e49013a7ee5602
--- firmware/App/Services/SystemComm.c	(.../SystemComm.c)	(revision 4164cba570c42566aee10d7cce23c3cea0d903ee)
+++ firmware/App/Services/SystemComm.c	(.../SystemComm.c)	(revision 01470ee3c64ededcc77a4f7378e49013a7ee5602)
@@ -1156,7 +1156,8 @@
             break;
 
         case MSG_ID_REQUEST_FW_VERSIONS:
-            handleFWVersionRequest( message );
+            handleFWVersionRequest( message );
+            handleHDSerialNumberRequest();
             break;
 
         case MSG_ID_DG_TEMPERATURE_DATA:
@@ -1311,6 +1312,14 @@
             handleSetHDStandbyDisinfectSubmodeRequest( message );
             break;
 
+        case MSG_ID_UI_REQUEST_SERVICE_INFO:
+            handleHDServiceScheduleRequest( message );
+            break;
+
+        case MSG_ID_REQUEST_HD_USAGE_INFO:
+            handleHDUsageInfoRequest( message );
+            break;
+
         // NOTE: this always must be the last case
         case MSG_ID_TESTER_LOGIN_REQUEST:
             handleTesterLogInRequest( message );
@@ -1580,6 +1589,14 @@
                 handleBubbleSelfTestRequest( message );
                 break;
 
+            case MSG_ID_HD_SWITCHES_STATUS_OVERRIDE:
+                handleSetSwitchesStatusOverrideRequest( message );
+                break;
+
+            case MSG_ID_HD_SWITCHES_PUBLISH_INTERVAL_OVERRIDE:
+                handleTestSwitchesPublishIntervalOverrideRequest( message );
+                break;
+
             case MSG_ID_HD_SET_OP_MODE_REQUEST:
                 handleTestSetOpModeRequest( message );
                 break;
@@ -1681,7 +1698,7 @@
                 break;
 
             case MSG_ID_HD_FANS_PUBLISH_INTERVAL_OVERRIDE:
-                handleTestFansBroadcastIntervalOverrideRequest( message )
+                handleTestFansBroadcastIntervalOverrideRequest( message );
                 break;
 
             case MSG_ID_HD_SET_CALIBRATION_RECORD: