diff --git a/app/src/main/java/com/flywithu/carnav/MainActivity.java b/app/src/main/java/com/flywithu/carnav/MainActivity.java
index a13b099..9c69b76 100644
--- a/app/src/main/java/com/flywithu/carnav/MainActivity.java
+++ b/app/src/main/java/com/flywithu/carnav/MainActivity.java
@@ -14,6 +14,7 @@ import android.util.Log;
 import android.widget.Toast;
 
 import com.hoho.android.usbserial.driver.UsbSerialDriver;
+import com.hoho.android.usbserial.driver.UsbSerialPort;
 import com.hoho.android.usbserial.driver.UsbSerialProber;
 
 import java.util.List;
@@ -25,11 +26,17 @@ public class MainActivity extends AppCompatActivity {
     public static final String TAG="carnav";
     static final String ACTION_USB_PERMISSION = "com.flywithu.carnav.USB_PERMISSION";
     private BroadcastReceiver usbReceiver = null;
+    private static UsbSerialPort sPort = null;
     private void goService()
     {
+
+
+
         if (RealService.serviceIntent == null) {
+
             serviceIntent = new Intent(this, RealService.class);
             startService(serviceIntent);
+            Toast.makeText(getApplicationContext(), "new start", Toast.LENGTH_LONG).show();
         } else {
             serviceIntent = RealService.serviceIntent;//getInstance().getApplication();
             Toast.makeText(getApplicationContext(), "already", Toast.LENGTH_LONG).show();
@@ -74,12 +81,12 @@ public class MainActivity extends AppCompatActivity {
 
                                     if(intent.getBooleanExtra(UsbManager.EXTRA_PERMISSION_GRANTED,true))
                                     {
-                                        Toast.makeText(getApplicationContext(), "Pemission Granted", Toast.LENGTH_LONG);
+                                        Toast.makeText(getApplicationContext(), "Pemission Granted", Toast.LENGTH_LONG).show();
                                         goService();
                                     }
                                     else
                                     {
-                                        Toast.makeText(getApplicationContext(), "Pemission Denied", Toast.LENGTH_LONG);
+                                        Toast.makeText(getApplicationContext(), "Pemission Denied", Toast.LENGTH_LONG).show();
                                     }
                                 }
 
@@ -96,18 +103,26 @@ public class MainActivity extends AppCompatActivity {
 
                 }
                 else {
+                    Toast.makeText(getApplicationContext(), "Has Permission", Toast.LENGTH_LONG).show();
                     connection = manager.openDevice(driver.getDevice());
                     if (connection == null) {
-                        Toast.makeText(getApplicationContext(), "Unknown error", Toast.LENGTH_LONG);
+                        Toast.makeText(getApplicationContext(), "Unknown error", Toast.LENGTH_LONG).show();
                     } else {
 
+
+                        sPort = driver.getPorts().get(0);
+                        sPort.open(connection);
+                        sPort.close();
+                        sPort = null;
+
+                        Toast.makeText(getApplicationContext(),"Serial Count:"+String.valueOf(driver.getPorts().size()),Toast.LENGTH_LONG).show();
                         goService();
                     }
                 }
             }
             catch(Exception e)
             {
-                e.toString();
+               Toast.makeText(getApplicationContext(),e.toString(),Toast.LENGTH_LONG).show();
             }