diff --git a/app/src/main/java/com/xypower/mpapp/AppMaster.java b/app/src/main/java/com/xypower/mpapp/AppMaster.java
index c475586f..6b0bccc8 100644
--- a/app/src/main/java/com/xypower/mpapp/AppMaster.java
+++ b/app/src/main/java/com/xypower/mpapp/AppMaster.java
@@ -42,7 +42,10 @@ public class AppMaster {
 
     @Override
     protected void finalize() {
-        mWakelock.release();
+        if (mWakelock != null) {
+            mWakelock.release();
+            mWakelock = null;
+        }
         mService = null;
     }
 
diff --git a/app/src/main/java/com/xypower/mpapp/BootBroadcastReceiver.java b/app/src/main/java/com/xypower/mpapp/BootBroadcastReceiver.java
index 33e6ddc4..6c0adede 100644
--- a/app/src/main/java/com/xypower/mpapp/BootBroadcastReceiver.java
+++ b/app/src/main/java/com/xypower/mpapp/BootBroadcastReceiver.java
@@ -1,8 +1,10 @@
 package com.xypower.mpapp;
 
+import android.app.PendingIntent;
 import android.content.BroadcastReceiver;
 import android.content.Context;
 import android.content.Intent;
+import android.util.Log;
 
 public class BootBroadcastReceiver extends BroadcastReceiver {
     private static final String ACTION = "android.intent.action.BOOT_COMPLETED";
@@ -15,12 +17,24 @@ public class BootBroadcastReceiver extends BroadcastReceiver {
         if (ACTION.equals(intent.getAction())) {
             // Log.e("接收广播", "onReceive: 启动了。。。");
 
+            Log.i("BootBroadcastReceiver", "Start MainActivity");
+
+            /*
             Intent mainIntent = new Intent(context, MainActivity.class);
             mainIntent.putExtra("reboot", 1);
-            /**
-             * Intent.FLAG_ACTIVITY_NEW_TASK
-             * Intent.FLAG_ACTIVITY_CLEAR_TOP
+            intent.setFlags(Intent.FLAG_ACTIVITY_NEW_TASK);
+            PendingIntent pendingIntent = PendingIntent.getActivity(context, 0, intent, 0);
+            try {
+                pendingIntent.send();
+            } catch (PendingIntent.CanceledException e) {
+                e.printStackTrace();
+            }
              */
+
+            Intent mainIntent = new Intent(context, MainActivity.class);
+            mainIntent.putExtra("reboot", 1);
+            //Intent.FLAG_ACTIVITY_NEW_TASK
+            // Intent.FLAG_ACTIVITY_CLEAR_TOP
             mainIntent.setFlags(Intent.FLAG_ACTIVITY_NEW_TASK);
             context.startActivity(mainIntent);
 
diff --git a/app/src/main/java/com/xypower/mpapp/MainActivity.java b/app/src/main/java/com/xypower/mpapp/MainActivity.java
index a9f14973..c10f3a8b 100644
--- a/app/src/main/java/com/xypower/mpapp/MainActivity.java
+++ b/app/src/main/java/com/xypower/mpapp/MainActivity.java
@@ -211,8 +211,6 @@ public class MainActivity extends AppCompatActivity {
         int width = defaultDisplay.getWidth();
         int height = defaultDisplay.getHeight();
 
-        Log.d(TAG, "Screen Size: " + width + " x " + height);
-
         Intent intent = getIntent();
         final int noDelay = intent.getIntExtra("noDelay", 0);
         int rebootFlag = intent.getIntExtra("reboot", 0);
@@ -220,6 +218,8 @@ public class MainActivity extends AppCompatActivity {
             // SysApi.enableAirPlane(MainActivity.this, true);
         }
 
+        Log.d(TAG, "MainActivity: reboot=" + rebootFlag + " noDelay=" + noDelay);
+
         String cmdid = "";
         String server = "";
         Integer port = new Integer(6891);
diff --git a/app/src/main/java/com/xypower/mpapp/MicroPhotoService.java b/app/src/main/java/com/xypower/mpapp/MicroPhotoService.java
index 11a2722f..66cb19ad 100644
--- a/app/src/main/java/com/xypower/mpapp/MicroPhotoService.java
+++ b/app/src/main/java/com/xypower/mpapp/MicroPhotoService.java
@@ -53,7 +53,7 @@ import java.util.List;
 import java.util.Map;
 
 public class MicroPhotoService extends Service {
-    public static final String TAG = "MPService";
+    public static final String TAG = "MPLOG";
 
     // Used to load the 'microphoto' library on application startup.
     static {
@@ -865,6 +865,7 @@ public class MicroPhotoService extends Service {
                     startActivity(LaunchIntent);
 
                 } else {
+                    Log.w(TAG, "Recv REBOOT command");
                     SysApi.reboot(getApplicationContext());
                 }
             }