diff --git a/examples/hawkbit-device-simulator/src/main/java/org/eclipse/hawkbit/simulator/SimulationController.java b/examples/hawkbit-device-simulator/src/main/java/org/eclipse/hawkbit/simulator/SimulationController.java
index 426860d8b..649d88477 100644
--- a/examples/hawkbit-device-simulator/src/main/java/org/eclipse/hawkbit/simulator/SimulationController.java
+++ b/examples/hawkbit-device-simulator/src/main/java/org/eclipse/hawkbit/simulator/SimulationController.java
@@ -86,7 +86,10 @@ public class SimulationController {
             final String deviceId = name + i;
             repository.add(deviceFactory.createSimulatedDevice(deviceId, tenant, protocol, pollDelay, new URL(endpoint),
                     gatewayToken));
-            spSenderService.createOrUpdateThing(tenant, deviceId);
+
+            if (protocol == Protocol.DMF_AMQP) {
+                spSenderService.createOrUpdateThing(tenant, deviceId);
+            }
         }
 
         return ResponseEntity.ok("Updated " + amount + " DMF connected targets!");
diff --git a/examples/hawkbit-device-simulator/src/main/java/org/eclipse/hawkbit/simulator/SimulatorStartup.java b/examples/hawkbit-device-simulator/src/main/java/org/eclipse/hawkbit/simulator/SimulatorStartup.java
index 60f3055bd..b772bae1f 100644
--- a/examples/hawkbit-device-simulator/src/main/java/org/eclipse/hawkbit/simulator/SimulatorStartup.java
+++ b/examples/hawkbit-device-simulator/src/main/java/org/eclipse/hawkbit/simulator/SimulatorStartup.java
@@ -11,6 +11,7 @@ package org.eclipse.hawkbit.simulator;
 import java.net.MalformedURLException;
 import java.net.URL;
 
+import org.eclipse.hawkbit.simulator.AbstractSimulatedDevice.Protocol;
 import org.eclipse.hawkbit.simulator.amqp.SpSenderService;
 import org.slf4j.Logger;
 import org.slf4j.LoggerFactory;
@@ -52,7 +53,9 @@ public class SimulatorStartup implements ApplicationListener<ContextRefreshedEve
                     LOGGER.error("Creation of simulated device at startup failed.", e);
                 }
 
-                spSenderService.createOrUpdateThing(autostart.getTenant(), deviceId);
+                if (autostart.getApi() == Protocol.DMF_AMQP) {
+                    spSenderService.createOrUpdateThing(autostart.getTenant(), deviceId);
+                }
             }
         });
     }
diff --git a/hawkbit-ui/README.md b/hawkbit-ui/README.md
new file mode 100644
index 000000000..4bf9d67da
--- /dev/null
+++ b/hawkbit-ui/README.md
@@ -0,0 +1,34 @@
+# hawkBit User Interface
+
+The hawkBit user interface is based on the Vaadin and Vaadin-Spring framework and allows to manage software updates and large scale roll-outs via a user interface.
+
+## Debugging client-side code 
+### Debug using SuperDevMode
+The SuperDevMode can be used to debug client side code without any browser plugin.
+
+#### Using SuperDevMode with chrome :
+
+- Add required maven dependencies
+	- Add vaadin-client-compiler dependency
+	- Add jetty dependencies (version : 8.1x)
+- Set redirect property in the AppWidgetSet.gwt.xml module descriptor as follows
+	- < set-configuration-property name="devModeRedirectEnabled" value="true" />
+- Create launch configuration for the SuperDevMode 
+	- The main class to execute should be com.google.gwt.dev.codeserver.CodeServer.
+	- Add fully-qualified class name of widgetset (org.eclipse.hawkbit.ui.AppWidgetSet) as parameter
+- Enable debug in chrome
+	- Chrome inspector window ▸ Click on settings icon ▸ Scripts ▸ Enable source maps option
+- Run the SuperDevMode Code Server with the launch configuration created above
+- Open http://localhost:8080/UI/?debug  .Click on "SuperDev" button in debug console (Alternatively can directly add ?superdevmode parameter to URL)
+- Widgetset is compiled and you can see the java code files loaded in 'Chrome inspector window ▸ Source tab'
+
+
+#### Using SuperDevMode with Eclipse :
+
+- Install the plugin from http://sdbg.github.io/p2
+- Start the server and Super Dev Mode as mentioned above
+- Create a new launch configuration in Eclipse
+	- Type is "Launch Chrome"
+	- http://localhost:8080/UI/?superdevmode
+- Launch the new configuration in debug mode
+- Now breakpoints in eclipse can be set