diff --git a/src/com/android/settings/bluetooth/AvailableMediaBluetoothDeviceUpdater.java b/src/com/android/settings/bluetooth/AvailableMediaBluetoothDeviceUpdater.java
index 9a287f1..ea520ea 100644
--- a/src/com/android/settings/bluetooth/AvailableMediaBluetoothDeviceUpdater.java
+++ b/src/com/android/settings/bluetooth/AvailableMediaBluetoothDeviceUpdater.java
@@ -97,6 +97,11 @@
             if (DBG) {
                 Log.d(TAG, "isFilterMatched() current audio profile : " + currentAudioProfile);
             }
+            // If device is Hearing Aid, it is compatible with HFP and A2DP.
+            // It would show in Available Devices group.
+            if (cachedDevice.isConnectedHearingAidDevice()) {
+                return true;
+            }
             // According to the current audio profile type,
             // this page will show the bluetooth device that have corresponding profile.
             // For example:
diff --git a/src/com/android/settings/bluetooth/ConnectedBluetoothDeviceUpdater.java b/src/com/android/settings/bluetooth/ConnectedBluetoothDeviceUpdater.java
index 0ac3e6d..bb543ba 100644
--- a/src/com/android/settings/bluetooth/ConnectedBluetoothDeviceUpdater.java
+++ b/src/com/android/settings/bluetooth/ConnectedBluetoothDeviceUpdater.java
@@ -101,6 +101,11 @@
             if (DBG) {
                 Log.d(TAG, "isFilterMatched() current audio profile : " + currentAudioProfile);
             }
+            // If device is Hearing Aid, it is compatible with HFP and A2DP.
+            // It would not show in Connected Devices group.
+            if (cachedDevice.isConnectedHearingAidDevice()) {
+                return false;
+            }
             // According to the current audio profile type,
             // this page will show the bluetooth device that doesn't have corresponding profile.
             // For example:
diff --git a/src/com/android/settings/development/qstile/DevelopmentTiles.java b/src/com/android/settings/development/qstile/DevelopmentTiles.java
index 5482b02..ec017c5 100644
--- a/src/com/android/settings/development/qstile/DevelopmentTiles.java
+++ b/src/com/android/settings/development/qstile/DevelopmentTiles.java
@@ -16,7 +16,9 @@
 
 package com.android.settings.development.qstile;
 
+import android.content.ComponentName;
 import android.content.Context;
+import android.content.pm.PackageManager;
 import android.os.IBinder;
 import android.os.Parcel;
 import android.os.RemoteException;
@@ -25,7 +27,6 @@
 import android.provider.Settings;
 import android.service.quicksettings.Tile;
 import android.service.quicksettings.TileService;
-import androidx.annotation.VisibleForTesting;
 import android.util.Log;
 import android.view.IWindowManager;
 import android.view.ThreadedRenderer;
@@ -34,9 +35,12 @@
 import android.widget.Toast;
 
 import com.android.internal.app.LocalePicker;
+import com.android.internal.statusbar.IStatusBarService;
 import com.android.settingslib.development.DevelopmentSettingsEnabler;
 import com.android.settingslib.development.SystemPropPoker;
 
+import androidx.annotation.VisibleForTesting;
+
 public abstract class DevelopmentTiles extends TileService {
     private static final String TAG = "DevelopmentTiles";
 
@@ -58,6 +62,20 @@
                 setIsEnabled(false);
                 SystemPropPoker.getInstance().poke();
             }
+            final ComponentName cn = new ComponentName(getPackageName(), getClass().getName());
+            try {
+                getPackageManager().setComponentEnabledSetting(
+                        cn, PackageManager.COMPONENT_ENABLED_STATE_DISABLED,
+                        PackageManager.DONT_KILL_APP);
+                final IStatusBarService statusBarService = IStatusBarService.Stub.asInterface(
+                        ServiceManager.checkService(Context.STATUS_BAR_SERVICE));
+                if (statusBarService != null) {
+                    statusBarService.remTile(cn);
+                }
+            } catch (RemoteException e) {
+                Log.e(TAG, "Failed to modify QS tile for component " +
+                        cn.toString(), e);
+            }
             state = Tile.STATE_UNAVAILABLE;
         } else {
             state = isEnabled() ? Tile.STATE_ACTIVE : Tile.STATE_INACTIVE;
diff --git a/src/com/android/settings/vpn2/VpnUtils.java b/src/com/android/settings/vpn2/VpnUtils.java
index 4528180..38c56c5 100644
--- a/src/com/android/settings/vpn2/VpnUtils.java
+++ b/src/com/android/settings/vpn2/VpnUtils.java
@@ -38,7 +38,8 @@
     private static final String TAG = "VpnUtils";
 
     public static String getLockdownVpn() {
-        final byte[] value = KeyStore.getInstance().get(Credentials.LOCKDOWN_VPN);
+        final byte[] value = KeyStore.getInstance().get(
+            Credentials.LOCKDOWN_VPN, true /* suppressKeyNotFoundWarning */);
         return value == null ? null : new String(value);
     }
 
diff --git a/tests/robotests/src/com/android/settings/bluetooth/AvailableMediaBluetoothDeviceUpdaterTest.java b/tests/robotests/src/com/android/settings/bluetooth/AvailableMediaBluetoothDeviceUpdaterTest.java
index ced8fc4..0b1311d 100644
--- a/tests/robotests/src/com/android/settings/bluetooth/AvailableMediaBluetoothDeviceUpdaterTest.java
+++ b/tests/robotests/src/com/android/settings/bluetooth/AvailableMediaBluetoothDeviceUpdaterTest.java
@@ -204,6 +204,33 @@
     }
 
     @Test
+    public void onProfileConnectionStateChanged_hearingAidDeviceConnected_notInCall_addPreference()
+    {
+        mShadowAudioManager.setMode(AudioManager.MODE_NORMAL);
+        when(mBluetoothDeviceUpdater.
+                isDeviceConnected(any(CachedBluetoothDevice.class))).thenReturn(true);
+        when(mCachedBluetoothDevice.isConnectedHearingAidDevice()).thenReturn(true);
+
+        mBluetoothDeviceUpdater.onProfileConnectionStateChanged(mCachedBluetoothDevice,
+                BluetoothProfile.STATE_CONNECTED, BluetoothProfile.HEARING_AID);
+
+        verify(mBluetoothDeviceUpdater).addPreference(mCachedBluetoothDevice);
+    }
+
+    @Test
+    public void onProfileConnectionStateChanged_hearingAidDeviceConnected_inCall_addPreference() {
+        mShadowAudioManager.setMode(AudioManager.MODE_IN_CALL);
+        when(mBluetoothDeviceUpdater.
+                isDeviceConnected(any(CachedBluetoothDevice.class))).thenReturn(true);
+        when(mCachedBluetoothDevice.isConnectedHearingAidDevice()).thenReturn(true);
+
+        mBluetoothDeviceUpdater.onProfileConnectionStateChanged(mCachedBluetoothDevice,
+                BluetoothProfile.STATE_CONNECTED, BluetoothProfile.HEARING_AID);
+
+        verify(mBluetoothDeviceUpdater).addPreference(mCachedBluetoothDevice);
+    }
+
+    @Test
     public void onProfileConnectionStateChanged_deviceDisconnected_removePreference() {
         mBluetoothDeviceUpdater.onProfileConnectionStateChanged(mCachedBluetoothDevice,
                 BluetoothProfile.STATE_DISCONNECTED, BluetoothProfile.A2DP);
diff --git a/tests/robotests/src/com/android/settings/bluetooth/ConnectedBluetoothDeviceUpdaterTest.java b/tests/robotests/src/com/android/settings/bluetooth/ConnectedBluetoothDeviceUpdaterTest.java
index 483df01..8120d91 100644
--- a/tests/robotests/src/com/android/settings/bluetooth/ConnectedBluetoothDeviceUpdaterTest.java
+++ b/tests/robotests/src/com/android/settings/bluetooth/ConnectedBluetoothDeviceUpdaterTest.java
@@ -205,6 +205,34 @@
     }
 
     @Test
+    public void onProfileConnectionStateChanged_hearingAidDeviceConnected_inCall_removePreference()
+    {
+        mShadowAudioManager.setMode(AudioManager.MODE_IN_CALL);
+        when(mBluetoothDeviceUpdater.
+                isDeviceConnected(any(CachedBluetoothDevice.class))).thenReturn(true);
+        when(mCachedBluetoothDevice.isConnectedHearingAidDevice()).thenReturn(true);
+
+        mBluetoothDeviceUpdater.onProfileConnectionStateChanged(mCachedBluetoothDevice,
+                BluetoothProfile.STATE_CONNECTED, BluetoothProfile.HEARING_AID);
+
+        verify(mBluetoothDeviceUpdater).removePreference(mCachedBluetoothDevice);
+    }
+
+    @Test
+    public void onProfileConnectionStateChanged_hearingAidDeviceConnected_notInCall_removePreference
+            () {
+        mShadowAudioManager.setMode(AudioManager.MODE_NORMAL);
+        when(mBluetoothDeviceUpdater.
+                isDeviceConnected(any(CachedBluetoothDevice.class))).thenReturn(true);
+        when(mCachedBluetoothDevice.isConnectedHearingAidDevice()).thenReturn(true);
+
+        mBluetoothDeviceUpdater.onProfileConnectionStateChanged(mCachedBluetoothDevice,
+                BluetoothProfile.STATE_CONNECTED, BluetoothProfile.HEARING_AID);
+
+        verify(mBluetoothDeviceUpdater).removePreference(mCachedBluetoothDevice);
+    }
+
+    @Test
     public void onProfileConnectionStateChanged_deviceDisconnected_removePreference() {
         mBluetoothDeviceUpdater.onProfileConnectionStateChanged(mCachedBluetoothDevice,
                 BluetoothProfile.STATE_DISCONNECTED, BluetoothProfile.A2DP);
diff --git a/tests/robotests/src/com/android/settings/development/qstile/DevelopmentTilesTest.java b/tests/robotests/src/com/android/settings/development/qstile/DevelopmentTilesTest.java
index 85c1cb5..8367fd3 100644
--- a/tests/robotests/src/com/android/settings/development/qstile/DevelopmentTilesTest.java
+++ b/tests/robotests/src/com/android/settings/development/qstile/DevelopmentTilesTest.java
@@ -19,7 +19,10 @@
 import static com.google.common.truth.Truth.assertThat;
 import static org.mockito.Mockito.doReturn;
 import static org.mockito.Mockito.spy;
+import static org.mockito.Mockito.verify;
 
+import android.content.ComponentName;
+import android.content.pm.PackageManager;
 import android.service.quicksettings.Tile;
 
 import com.android.settings.testutils.SettingsRobolectricTestRunner;
@@ -37,6 +40,9 @@
 
     @Mock
     private Tile mTile;
+    @Mock
+    private PackageManager mPackageManager;
+
     private DevelopmentTiles mService;
 
     @Before
@@ -48,11 +54,18 @@
 
     @Test
     public void refresh_devOptionIsDisabled_shouldResetTileValue() {
+        final ComponentName cn = new ComponentName(
+                mService.getPackageName(), mService.getClass().getName());
+        doReturn(mPackageManager).when(mService).getPackageManager();
+
         DevelopmentSettingsEnabler.setDevelopmentSettingsEnabled(mService, false);
         mService.setIsEnabled(true);
 
         mService.refresh();
 
+        verify(mPackageManager).setComponentEnabledSetting(cn,
+                PackageManager.COMPONENT_ENABLED_STATE_DISABLED,
+                PackageManager.DONT_KILL_APP);
         assertThat(mService.isEnabled()).isFalse();
     }
 }