diff --git a/app/src/main/java/com/xypower/mpapp/MicroPhotoService.java b/app/src/main/java/com/xypower/mpapp/MicroPhotoService.java
index fb9cfb0a..9fcde168 100644
--- a/app/src/main/java/com/xypower/mpapp/MicroPhotoService.java
+++ b/app/src/main/java/com/xypower/mpapp/MicroPhotoService.java
@@ -802,7 +802,7 @@ public class MicroPhotoService extends Service {
                 mWakeLocks.remove(name);
 
                 if (mWakeLocks.isEmpty()) {
-                    mHander.postDelayed(delayedSleep, 2000);
+                    // mHander.postDelayed(delayedSleep, 2000);
                 }
             } catch (Exception ex) {
                 ex.printStackTrace();
@@ -811,12 +811,23 @@ public class MicroPhotoService extends Service {
         if (wl != null) {
             Log.i(TAG, "Release wakelock:" + name);
             try {
-                wl.setReferenceCounted(false);
-                wl.release();
+                final PowerManager.WakeLock finalWl = wl;
+                wl = null;
+                mHander.postDelayed(new Runnable() {
+                    @Override
+                    public void run() {
+                        try {
+                            finalWl.setReferenceCounted(false);
+                            finalWl.release();
+                        } catch (Exception ex) {
+                            ex.printStackTrace();
+                        }
+                    }
+                }, 200);
+
             } catch (Exception ex) {
                 ex.printStackTrace();
             }
-            wl = null;
         }
     }