diff --git a/mpmaster/src/main/java/com/xypower/mpmaster/MpMasterService.java b/mpmaster/src/main/java/com/xypower/mpmaster/MpMasterService.java
index c599aad3..ab0e7e05 100644
--- a/mpmaster/src/main/java/com/xypower/mpmaster/MpMasterService.java
+++ b/mpmaster/src/main/java/com/xypower/mpmaster/MpMasterService.java
@@ -419,7 +419,7 @@ public class MpMasterService extends Service {
                 tempduration = 290000;
             if (mPreviousMpHbTime <= ts && ts - mPreviousMpHbTime > tempduration * 2) {
                 // MpApp is not running
-                if (ts - mTimeToStartMpApp >= 1800000) {
+                if (ts - mTimeToStartMpApp >= 1800000) { // 30 minutes 30 * 60 * 1000
                     MicroPhotoContext.restartMpApp(context, "MpMST Keep Alive Detection");
 
                     logger.warning("Restart MpAPP as it is NOT Running Prev MPAPP HB=" +
@@ -445,7 +445,7 @@ public class MpMasterService extends Service {
 //                    ((ts - modifiedTimeOfUpload) > mTimeOfMpAppAlive * 4)
             ) {
 
-                if (ts - mTimeToStartMpApp >= 1800000) {
+                if (ts - mTimeToStartMpApp >= 1800000) { // 30 minutes 30 * 60 * 1000
                     String msg = "Restart MpAPP as it is NOT Running hb=" + Long.toString(ts - modifiedTimeOfHb) +
                             " taking=" + Long.toString(ts - modifiedTimeOfPhoto) + " sending=" + Long.toString(ts - modifiedTimeOfUpload) +
                             " Will restart MpApp in " + Long.toString(mDelayedRestartMpTime / 1000) + " seconds";