diff --git a/packages/ExtServices/src/android/ext/services/notification/Assistant.java b/packages/ExtServices/src/android/ext/services/notification/Assistant.java
index 6fe8975577a47..9a66b07fb74f1 100644
--- a/packages/ExtServices/src/android/ext/services/notification/Assistant.java
+++ b/packages/ExtServices/src/android/ext/services/notification/Assistant.java
@@ -94,7 +94,7 @@ public class Assistant extends NotificationAssistantService {
                 infile = mFile.openRead();
                 readXml(infile);
             } catch (FileNotFoundException e) {
-                // No data yet
+                Log.d(TAG, "File doesn't exist or isn't readable yet");
             } catch (IOException e) {
                 Log.e(TAG, "Unable to read channel impressions", e);
             } catch (NumberFormatException | XmlPullParserException e) {
diff --git a/packages/ExtServices/tests/src/android/ext/services/notification/AssistantTest.java b/packages/ExtServices/tests/src/android/ext/services/notification/AssistantTest.java
index 7c35b48310f2d..db48f610471da 100644
--- a/packages/ExtServices/tests/src/android/ext/services/notification/AssistantTest.java
+++ b/packages/ExtServices/tests/src/android/ext/services/notification/AssistantTest.java
@@ -325,7 +325,8 @@ public class AssistantTest extends ServiceTestCase<Assistant> {
         int dismiss2 = 777;
         String key2 = mAssistant.getKey("pkg2", 2, "channel2");
 
-        String xml = "<assistant version=\"1\">\n"
+        String xml = "<?xml version='1.0' encoding='utf-8' standalone='yes' ?>"
+                + "<assistant version=\"1\">\n"
                 + "<impression-set key=\"" + key1 + "\" "
                 + "dismisses=\"" + dismiss1 + "\" views=\"" + views1
                 + "\" streak=\"" + streak1 + "\"/>\n"
@@ -377,7 +378,6 @@ public class AssistantTest extends ServiceTestCase<Assistant> {
         mAssistant.insertImpressions(key2, ci2);
         mAssistant.insertImpressions(key3, ci3);
 
-
         XmlSerializer serializer = new FastXmlSerializer();
         ByteArrayOutputStream baos = new ByteArrayOutputStream();
         serializer.setOutput(new BufferedOutputStream(baos), "utf-8");
diff --git a/services/core/java/com/android/server/notification/ManagedServices.java b/services/core/java/com/android/server/notification/ManagedServices.java
index 502760a2cfc4c..fd435f952c109 100644
--- a/services/core/java/com/android/server/notification/ManagedServices.java
+++ b/services/core/java/com/android/server/notification/ManagedServices.java
@@ -771,7 +771,7 @@ abstract public class ManagedServices {
      * Called whenever packages change, the user switches, or the secure setting
      * is altered. (For example in response to USER_SWITCHED in our broadcast receiver)
      */
-    private void rebindServices(boolean forceRebind) {
+    protected void rebindServices(boolean forceRebind) {
         if (DEBUG) Slog.d(TAG, "rebindServices");
         final int[] userIds = mUserProfiles.getCurrentProfileIds();
         final int nUserIds = userIds.length;
diff --git a/services/core/java/com/android/server/notification/NotificationManagerService.java b/services/core/java/com/android/server/notification/NotificationManagerService.java
index 727e7ee2ac18a..1013d4e54d0fe 100644
--- a/services/core/java/com/android/server/notification/NotificationManagerService.java
+++ b/services/core/java/com/android/server/notification/NotificationManagerService.java
@@ -5687,6 +5687,12 @@ public class NotificationManagerService extends SystemService {
             mListeners.unregisterService(removed.service, removed.userid);
         }
 
+        @Override
+        public void onUserUnlocked(int user) {
+            if (DEBUG) Slog.d(TAG, "onUserUnlocked u=" + user);
+            rebindServices(true);
+        }
+
         public void onNotificationEnqueued(final NotificationRecord r) {
             final StatusBarNotification sbn = r.sbn;
             TrimCache trimCache = new TrimCache(sbn);