diff --git a/core/java/android/app/NotificationManager.java b/core/java/android/app/NotificationManager.java
index fe2168b..9d7e4a2 100644
--- a/core/java/android/app/NotificationManager.java
+++ b/core/java/android/app/NotificationManager.java
@@ -415,16 +415,12 @@
      * Creates a notification channel that notifications can be posted to.
      *
      * This can also be used to restore a deleted channel and to update an existing channel's
-     * name, description, and/or importance.
+     * name and description.
      *
      * <p>The name and description should only be changed if the locale changes
      * or in response to the user renaming this channel. For example, if a user has a channel
      * named 'John Doe' that represents messages from a 'John Doe', and 'John Doe' changes his name
      * to 'John Smith,' the channel can be renamed to match.
-     *
-     * <p>The importance of an existing channel will only be changed if the new importance is lower
-     * than the current value and the user has not altered any settings on this channel.
-     *
      * All other fields are ignored for channels that already exist.
      *
      * @param channel  the channel to create.  Note that the created channel may differ from this
diff --git a/services/core/java/com/android/server/notification/RankingHelper.java b/services/core/java/com/android/server/notification/RankingHelper.java
index 8420c90..d7b36aa 100644
--- a/services/core/java/com/android/server/notification/RankingHelper.java
+++ b/services/core/java/com/android/server/notification/RankingHelper.java
@@ -567,13 +567,6 @@
             existing.setDescription(channel.getDescription());
             existing.setBlockableSystem(channel.isBlockableSystem());
 
-            // Apps are allowed to downgrade channel importance if the user has not changed any
-            // fields on this channel yet.
-            if (existing.getUserLockedFields() == 0 &&
-                    channel.getImportance() < existing.getImportance()) {
-                existing.setImportance(channel.getImportance());
-            }
-
             updateConfig();
             return;
         }
diff --git a/services/tests/notification/src/com/android/server/notification/NotificationManagerServiceTest.java b/services/tests/notification/src/com/android/server/notification/NotificationManagerServiceTest.java
index bbec98c..3801697 100644
--- a/services/tests/notification/src/com/android/server/notification/NotificationManagerServiceTest.java
+++ b/services/tests/notification/src/com/android/server/notification/NotificationManagerServiceTest.java
@@ -242,42 +242,6 @@
     }
 
     @Test
-    public void testCreateNotificationChannels_SecondCreateDoesNotChangeImportance()
-            throws Exception {
-        final NotificationChannel channel =
-                new NotificationChannel("id", "name", NotificationManager.IMPORTANCE_DEFAULT);
-        mBinderService.createNotificationChannels(PKG,
-                new ParceledListSlice(Arrays.asList(channel)));
-
-        // Recreating the channel doesn't throw, but ignores importance.
-        final NotificationChannel dupeChannel =
-                new NotificationChannel("id", "name", NotificationManager.IMPORTANCE_HIGH);
-        mBinderService.createNotificationChannels(PKG,
-                new ParceledListSlice(Arrays.asList(dupeChannel)));
-        final NotificationChannel createdChannel =
-                mBinderService.getNotificationChannel(PKG, "id");
-        assertEquals(NotificationManager.IMPORTANCE_DEFAULT, createdChannel.getImportance());
-    }
-
-    @Test
-    public void testCreateNotificationChannels_SecondCreateAllowedToDowngradeImportance()
-            throws Exception {
-        final NotificationChannel channel =
-                new NotificationChannel("id", "name", NotificationManager.IMPORTANCE_DEFAULT);
-        mBinderService.createNotificationChannels(PKG,
-                new ParceledListSlice(Arrays.asList(channel)));
-
-        // Recreating with a lower importance is allowed to modify the channel.
-        final NotificationChannel dupeChannel =
-                new NotificationChannel("id", "name", NotificationManager.IMPORTANCE_LOW);
-        mBinderService.createNotificationChannels(PKG,
-                new ParceledListSlice(Arrays.asList(dupeChannel)));
-        final NotificationChannel createdChannel =
-                mBinderService.getNotificationChannel(PKG, "id");
-        assertEquals(NotificationManager.IMPORTANCE_LOW, createdChannel.getImportance());
-    }
-
-    @Test
     public void testCreateNotificationChannels_CannotDowngradeImportanceIfAlreadyUpdated()
             throws Exception {
         final NotificationChannel channel =