diff --git a/mpmaster/src/main/java/com/xypower/mpmaster/MpMasterService.java b/mpmaster/src/main/java/com/xypower/mpmaster/MpMasterService.java
index 82ebd947..762adb58 100644
--- a/mpmaster/src/main/java/com/xypower/mpmaster/MpMasterService.java
+++ b/mpmaster/src/main/java/com/xypower/mpmaster/MpMasterService.java
@@ -82,6 +82,7 @@ public class MpMasterService extends Service {
 
     private static final String ACTION_HEARTBEAT = "com.xypower.mpmaster.ACT_HB";
     private static final String ACTION_TAKE_PHOTO = "com.xypower.mpapp.ACT_TP";
+    private static final String ACTION_MP_HEARTBEAT_MANUALLY = "com.xypower.mpapp.ACT_HB_M";
 
     public static final String ACTION_MP_RESTART = "com.xypower.mpapp.ACT_RESTART";
     public static final String ACTION_IMP_PUBKRY = "com.xypower.mpapp.ACT_IMP_PUBKEY";
@@ -1194,6 +1195,20 @@ public class MpMasterService extends Service {
         } else {
             SysApi.selectSimCard4Data(context, num);
         }
+
+        if (num == 1) {
+            // If it's back to card 1, let MpAPP send heartbeat manully after 10s
+            mHander.postDelayed(new Runnable() {
+                @Override
+                public void run() {
+                    Intent intent = new Intent();
+                    intent.setAction(ACTION_MP_HEARTBEAT_MANUALLY);
+                    intent.setPackage(MicroPhotoContext.PACKAGE_NAME_MPAPP);
+                    sendBroadcast(intent);
+                }
+            }, 10000);
+
+        }
     }
 
     private void setDefaultDataSubId(int subId) {