Index: tst_settings_date_and_time/test.py
===================================================================
diff -u -r5a65472ad6b1abc3aa576ae266647957123993d5 -r6bb43117bca2673c5de877f5b70b094da344418a
--- tst_settings_date_and_time/test.py	(.../test.py)	(revision 5a65472ad6b1abc3aa576ae266647957123993d5)
+++ tst_settings_date_and_time/test.py	(.../test.py)	(revision 6bb43117bca2673c5de877f5b70b094da344418a)
@@ -16,7 +16,7 @@
 
 from configuration import config, utility
 from dialin.ui.hd_simulator import HDSimulator
-from dialin.common.hd_defs import HDOpModes, HDOpSubModes
+from dialin.common.hd_defs import HDOpModes, HDStandbyStates
 from dialin.ui import utils
 from calendar import isleap
 
@@ -67,7 +67,7 @@
         Method to navigate to "Service" screen
     """
     test.startSection("Navigating to 'Service' screen")
-    hd_simulator.cmd_send_hd_operation_mode(op_mode=HDOpModes.MODE_SERV.value, sub_mode=HDOpSubModes.STANDBY_START_STATE.value)
+    hd_simulator.cmd_send_hd_operation_mode(op_mode=HDOpModes.MODE_SERV.value, sub_mode=HDStandbyStates.STANDBY_START_STATE.value)
     utils.waitForGUI(0.5)
     service_screen_text = waitForObjectExists(service_text_obj(config.SERVICE_SCREEN_TITLE_TEXT))
     test.compare(service_screen_text.text, config.SERVICE_SCREEN_TITLE_TEXT, "{} screen is displayed".format(config.SERVICE_SCREEN_TITLE_TEXT))