diff --git a/mpmaster/src/main/java/com/xypower/mpmaster/MpMasterService.java b/mpmaster/src/main/java/com/xypower/mpmaster/MpMasterService.java
index 0b9219f2..2ba8944a 100644
--- a/mpmaster/src/main/java/com/xypower/mpmaster/MpMasterService.java
+++ b/mpmaster/src/main/java/com/xypower/mpmaster/MpMasterService.java
@@ -390,9 +390,6 @@ public class MpMasterService extends Service {
     public boolean shouldSyncTime() { return mSyncTime; }
 
     public void startMpApp() {
-        if (true) {
-            return;
-        }
         try {
             final Context context = getApplicationContext();
             long ts = System.currentTimeMillis();
@@ -422,7 +419,7 @@ public class MpMasterService extends Service {
 
             long tempduration = mMpHeartbeatDuration;
             if(mMpHeartbeatDuration < 600000)
-                tempduration = 300000;
+                tempduration = 290000;
             if (mPreviousMpHbTime <= ts && ts - mPreviousMpHbTime > tempduration * 2) {
                 // MpApp is not running
                 if (ts - mTimeToStartMpApp >= 1800000) {