diff --git a/app/src/mobile/java/com/fongmi/android/tv/ui/activity/DetailActivity.java b/app/src/mobile/java/com/fongmi/android/tv/ui/activity/DetailActivity.java
index e01b0ee72..c033a27b1 100644
--- a/app/src/mobile/java/com/fongmi/android/tv/ui/activity/DetailActivity.java
+++ b/app/src/mobile/java/com/fongmi/android/tv/ui/activity/DetailActivity.java
@@ -1114,9 +1114,9 @@ public class DetailActivity extends BaseActivity implements CustomKeyDownVod.Lis
     public void onBackPressed() {
         if (isVisible(mBinding.control.getRoot())) {
             hideControl();
-        } else if (isFullscreen()) {
+        } else if (isFullscreen() && !isLock()) {
             exitFullscreen();
-        } else {
+        } else if (!isLock()) {
             stopSearch();
             finish();
         }
diff --git a/app/src/mobile/java/com/fongmi/android/tv/ui/custom/CustomKeyDownVod.java b/app/src/mobile/java/com/fongmi/android/tv/ui/custom/CustomKeyDownVod.java
index ace71d2df..58dbf523a 100644
--- a/app/src/mobile/java/com/fongmi/android/tv/ui/custom/CustomKeyDownVod.java
+++ b/app/src/mobile/java/com/fongmi/android/tv/ui/custom/CustomKeyDownVod.java
@@ -98,7 +98,7 @@ public class CustomKeyDownVod extends GestureDetector.SimpleOnGestureListener {
 
     @Override
     public boolean onDoubleTap(@NonNull MotionEvent e) {
-        listener.onDoubleTap();
+        if (!lock) listener.onDoubleTap();
         return true;
     }