diff --git a/src/com/android/settings/AllInOneTetherSettings.java b/src/com/android/settings/AllInOneTetherSettings.java
index 34d723f..d41c07b 100644
--- a/src/com/android/settings/AllInOneTetherSettings.java
+++ b/src/com/android/settings/AllInOneTetherSettings.java
@@ -16,8 +16,8 @@
 
 package com.android.settings;
 
-import static android.net.ConnectivityManager.ACTION_TETHER_STATE_CHANGED;
 import static android.net.ConnectivityManager.TETHERING_WIFI;
+import static android.net.TetheringManager.ACTION_TETHER_STATE_CHANGED;
 import static android.net.wifi.WifiManager.WIFI_AP_STATE_CHANGED_ACTION;
 
 import android.app.settings.SettingsEnums;
diff --git a/src/com/android/settings/TetherSettings.java b/src/com/android/settings/TetherSettings.java
index 48dd218..6d98f36 100644
--- a/src/com/android/settings/TetherSettings.java
+++ b/src/com/android/settings/TetherSettings.java
@@ -167,8 +167,8 @@
         mEm = (EthernetManager) getSystemService(Context.ETHERNET_SERVICE);
         mTm = (TetheringManager) getSystemService(Context.TETHERING_SERVICE);
 
-        mUsbRegexs = mCm.getTetherableUsbRegexs();
-        mBluetoothRegexs = mCm.getTetherableBluetoothRegexs();
+        mUsbRegexs = mTm.getTetherableUsbRegexs();
+        mBluetoothRegexs = mTm.getTetherableBluetoothRegexs();
         mEthernetRegex = getContext().getResources().getString(
                 com.android.internal.R.string.config_ethernet_iface_regex);
 
@@ -251,14 +251,14 @@
         public void onReceive(Context content, Intent intent) {
             String action = intent.getAction();
             // TODO: stop using ACTION_TETHER_STATE_CHANGED and use mTetheringEventCallback instead.
-            if (action.equals(ConnectivityManager.ACTION_TETHER_STATE_CHANGED)) {
+            if (action.equals(TetheringManager.ACTION_TETHER_STATE_CHANGED)) {
                 // TODO - this should understand the interface types
                 ArrayList<String> available = intent.getStringArrayListExtra(
-                        ConnectivityManager.EXTRA_AVAILABLE_TETHER);
+                        TetheringManager.EXTRA_AVAILABLE_TETHER);
                 ArrayList<String> active = intent.getStringArrayListExtra(
-                        ConnectivityManager.EXTRA_ACTIVE_TETHER);
+                        TetheringManager.EXTRA_ACTIVE_TETHER);
                 ArrayList<String> errored = intent.getStringArrayListExtra(
-                        ConnectivityManager.EXTRA_ERRORED_TETHER);
+                        TetheringManager.EXTRA_ERRORED_TETHER);
                 updateState(available.toArray(new String[available.size()]),
                         active.toArray(new String[active.size()]),
                         errored.toArray(new String[errored.size()]));
@@ -345,7 +345,7 @@
         final Activity activity = getActivity();
 
         mTetherChangeReceiver = new TetherChangeReceiver();
-        IntentFilter filter = new IntentFilter(ConnectivityManager.ACTION_TETHER_STATE_CHANGED);
+        IntentFilter filter = new IntentFilter(TetheringManager.ACTION_TETHER_STATE_CHANGED);
         final Intent intent = activity.registerReceiver(mTetherChangeReceiver, filter);
 
         filter = new IntentFilter();
@@ -367,11 +367,10 @@
     }
 
     private void updateState() {
-        final ConnectivityManager cm =
-                (ConnectivityManager) getSystemService(Context.CONNECTIVITY_SERVICE);
-        final String[] available = cm.getTetherableIfaces();
-        final String[] tethered = cm.getTetheredIfaces();
-        final String[] errored = cm.getTetheringErroredIfaces();
+        final TetheringManager tm = getContext().getSystemService(TetheringManager.class);
+        final String[] available = tm.getTetherableIfaces();
+        final String[] tethered = tm.getTetheredIfaces();
+        final String[] errored = tm.getTetheringErroredIfaces();
         updateState(available, tethered, errored);
     }
 
@@ -391,7 +390,7 @@
             for (String regex : mUsbRegexs) {
                 if (s.matches(regex)) {
                     if (usbError == ConnectivityManager.TETHER_ERROR_NO_ERROR) {
-                        usbError = mCm.getLastTetherError(s);
+                        usbError = mTm.getLastTetherError(s);
                     }
                 }
             }
@@ -558,8 +557,8 @@
                 @Override
                 public List<String> getNonIndexableKeys(Context context) {
                     final List<String> keys = super.getNonIndexableKeys(context);
-                    final ConnectivityManager cm =
-                            context.getSystemService(ConnectivityManager.class);
+                    final TetheringManager tm =
+                            context.getSystemService(TetheringManager.class);
 
                     if (!TetherUtil.isTetherAvailable(context)) {
                         keys.add(KEY_TETHER_PREFS_SCREEN);
@@ -567,13 +566,13 @@
                     }
 
                     final boolean usbAvailable =
-                            cm.getTetherableUsbRegexs().length != 0;
+                            tm.getTetherableUsbRegexs().length != 0;
                     if (!usbAvailable || Utils.isMonkeyRunning()) {
                         keys.add(KEY_USB_TETHER_SETTINGS);
                     }
 
                     final boolean bluetoothAvailable =
-                            cm.getTetherableBluetoothRegexs().length != 0;
+                            tm.getTetherableBluetoothRegexs().length != 0;
                     if (!bluetoothAvailable) {
                         keys.add(KEY_ENABLE_BLUETOOTH_TETHERING);
                     }
diff --git a/src/com/android/settings/network/BluetoothTetherPreferenceController.java b/src/com/android/settings/network/BluetoothTetherPreferenceController.java
index ab507da..96d39e3 100644
--- a/src/com/android/settings/network/BluetoothTetherPreferenceController.java
+++ b/src/com/android/settings/network/BluetoothTetherPreferenceController.java
@@ -70,7 +70,7 @@
 
     @Override
     public boolean shouldShow() {
-        final String[] bluetoothRegexs = mCm.getTetherableBluetoothRegexs();
+        final String[] bluetoothRegexs = mTm.getTetherableBluetoothRegexs();
         return bluetoothRegexs != null && bluetoothRegexs.length != 0;
     }
 
diff --git a/src/com/android/settings/network/EthernetTetherPreferenceController.java b/src/com/android/settings/network/EthernetTetherPreferenceController.java
index 19c410d..06cd6a7 100644
--- a/src/com/android/settings/network/EthernetTetherPreferenceController.java
+++ b/src/com/android/settings/network/EthernetTetherPreferenceController.java
@@ -65,7 +65,7 @@
 
     @Override
     public boolean shouldEnable() {
-        String[] available = mCm.getTetherableIfaces();
+        String[] available = mTm.getTetherableIfaces();
         for (String s : available) {
             if (s.matches(mEthernetRegex)) {
                 return true;
diff --git a/src/com/android/settings/network/TetherBasePreferenceController.java b/src/com/android/settings/network/TetherBasePreferenceController.java
index 1919770..822aa72 100644
--- a/src/com/android/settings/network/TetherBasePreferenceController.java
+++ b/src/com/android/settings/network/TetherBasePreferenceController.java
@@ -17,7 +17,7 @@
 package com.android.settings.network;
 
 import android.content.Context;
-import android.net.ConnectivityManager;
+import android.net.TetheringManager;
 
 import androidx.lifecycle.Lifecycle;
 import androidx.lifecycle.LifecycleObserver;
@@ -33,7 +33,7 @@
         TetherEnabler.OnTetherStateUpdateListener {
 
     private static final String TAG = "TetherBasePreferenceController";
-    final ConnectivityManager mCm;
+    final TetheringManager mTm;
     private final DataSaverBackend mDataSaverBackend;
 
     private TetherEnabler mTetherEnabler;
@@ -43,7 +43,7 @@
 
     TetherBasePreferenceController(Context context, String preferenceKey) {
         super(context, preferenceKey);
-        mCm = (ConnectivityManager) context.getSystemService(Context.CONNECTIVITY_SERVICE);
+        mTm = context.getSystemService(TetheringManager.class);
         mDataSaverBackend = new DataSaverBackend(context);
         mDataSaverEnabled = mDataSaverBackend.isDataSaverEnabled();
     }
diff --git a/src/com/android/settings/network/TetherEnabler.java b/src/com/android/settings/network/TetherEnabler.java
index 6ab4cb2..ef031f6 100644
--- a/src/com/android/settings/network/TetherEnabler.java
+++ b/src/com/android/settings/network/TetherEnabler.java
@@ -147,7 +147,7 @@
         mSwitchWidgetController.setListener(this);
         mSwitchWidgetController.startListening();
         final IntentFilter filter = new IntentFilter(
-                ConnectivityManager.ACTION_TETHER_STATE_CHANGED);
+                TetheringManager.ACTION_TETHER_STATE_CHANGED);
         filter.addAction(WifiManager.WIFI_AP_STATE_CHANGED_ACTION);
         filter.addAction(BluetoothAdapter.ACTION_STATE_CHANGED);
         mContext.registerReceiver(mTetherChangeReceiver, filter);
@@ -222,7 +222,7 @@
     int getTetheringState(@Nullable String[] tethered) {
         int tetherState = TETHERING_OFF;
         if (tethered == null) {
-            tethered = mConnectivityManager.getTetheredIfaces();
+            tethered = mTetheringManager.getTetheredIfaces();
         }
 
         if (mWifiManager.isWifiApEnabled()) {
@@ -239,7 +239,7 @@
             }
         }
 
-        String[] usbRegexs = mConnectivityManager.getTetherableUsbRegexs();
+        String[] usbRegexs = mTetheringManager.getTetherableUsbRegexs();
         for (String s : tethered) {
             for (String regex : usbRegexs) {
                 if (s.matches(regex)) {
diff --git a/src/com/android/settings/network/TetherPreferenceController.java b/src/com/android/settings/network/TetherPreferenceController.java
index 2409544..8df0ac1 100644
--- a/src/com/android/settings/network/TetherPreferenceController.java
+++ b/src/com/android/settings/network/TetherPreferenceController.java
@@ -28,6 +28,7 @@
 import android.content.IntentFilter;
 import android.database.ContentObserver;
 import android.net.ConnectivityManager;
+import android.net.TetheringManager;
 import android.net.Uri;
 import android.os.Bundle;
 import android.os.Handler;
@@ -62,6 +63,7 @@
     private final AtomicReference<BluetoothPan> mBluetoothPan;
     private final ConnectivityManager mConnectivityManager;
     private final BluetoothAdapter mBluetoothAdapter;
+    private final TetheringManager mTetheringManager;
     @VisibleForTesting
     final BluetoothProfile.ServiceListener mBtProfileServiceListener =
             new android.bluetooth.BluetoothProfile.ServiceListener() {
@@ -86,6 +88,7 @@
         mBluetoothPan = new AtomicReference<>();
         mConnectivityManager = null;
         mBluetoothAdapter = BluetoothAdapter.getDefaultAdapter();
+        mTetheringManager = null;
     }
 
     public TetherPreferenceController(Context context, Lifecycle lifecycle) {
@@ -95,6 +98,7 @@
         mConnectivityManager =
                 (ConnectivityManager) context.getSystemService(Context.CONNECTIVITY_SERVICE);
         mBluetoothAdapter = BluetoothAdapter.getDefaultAdapter();
+        mTetheringManager = context.getSystemService(TetheringManager.class);
         if (lifecycle != null) {
             lifecycle.addObserver(this);
         }
@@ -144,7 +148,7 @@
             mTetherReceiver = new TetherBroadcastReceiver();
         }
         mContext.registerReceiver(
-                mTetherReceiver, new IntentFilter(ConnectivityManager.ACTION_TETHER_STATE_CHANGED));
+                mTetherReceiver, new IntentFilter(TetheringManager.ACTION_TETHER_STATE_CHANGED));
         mContext.getContentResolver()
                 .registerContentObserver(mAirplaneModeObserver.uri, false, mAirplaneModeObserver);
     }
@@ -178,9 +182,9 @@
             // Preference is not ready yet.
             return;
         }
-        String[] allTethered = mConnectivityManager.getTetheredIfaces();
-        String[] wifiTetherRegex = mConnectivityManager.getTetherableWifiRegexs();
-        String[] bluetoothRegex = mConnectivityManager.getTetherableBluetoothRegexs();
+        String[] allTethered = mTetheringManager.getTetheredIfaces();
+        String[] wifiTetherRegex = mTetheringManager.getTetherableWifiRegexs();
+        String[] bluetoothRegex = mTetheringManager.getTetherableBluetoothRegexs();
 
         boolean hotSpotOn = false;
         boolean tetherOn = false;
@@ -211,7 +215,7 @@
                 && bluetoothRegex != null && bluetoothRegex.length > 0
                 && mBluetoothAdapter != null
                 && mBluetoothAdapter.getState() == BluetoothAdapter.STATE_ON) {
-            // Check bluetooth state. It's not included in mConnectivityManager.getTetheredIfaces.
+            // Check bluetooth state. It's not included in mTetheringManager.getTetheredIfaces.
             final BluetoothPan pan = mBluetoothPan.get();
             tetherOn = pan != null && pan.isTetheringOn();
         }
diff --git a/src/com/android/settings/network/UsbTetherPreferenceController.java b/src/com/android/settings/network/UsbTetherPreferenceController.java
index 7cf1ddf..7a5cc21 100644
--- a/src/com/android/settings/network/UsbTetherPreferenceController.java
+++ b/src/com/android/settings/network/UsbTetherPreferenceController.java
@@ -68,7 +68,7 @@
 
     @Override
     public boolean shouldShow() {
-        String[] usbRegexs = mCm.getTetherableUsbRegexs();
+        String[] usbRegexs = mTm.getTetherableUsbRegexs();
         return  usbRegexs != null && usbRegexs.length != 0 && !Utils.isMonkeyRunning();
     }
 
diff --git a/src/com/android/settings/network/WifiTetherDisablePreferenceController.java b/src/com/android/settings/network/WifiTetherDisablePreferenceController.java
index 38e831b..783f78f 100644
--- a/src/com/android/settings/network/WifiTetherDisablePreferenceController.java
+++ b/src/com/android/settings/network/WifiTetherDisablePreferenceController.java
@@ -68,7 +68,7 @@
 
     @Override
     public boolean shouldShow() {
-        final String[] wifiRegexs = mCm.getTetherableWifiRegexs();
+        final String[] wifiRegexs = mTm.getTetherableWifiRegexs();
         return wifiRegexs != null && wifiRegexs.length != 0 && !Utils.isMonkeyRunning()
                 && getTetheringStateOfOtherInterfaces() != TetherEnabler.TETHERING_OFF;
     }
diff --git a/src/com/android/settings/wifi/tether/WifiTetherBasePreferenceController.java b/src/com/android/settings/wifi/tether/WifiTetherBasePreferenceController.java
index 7ba0216..46da097 100644
--- a/src/com/android/settings/wifi/tether/WifiTetherBasePreferenceController.java
+++ b/src/com/android/settings/wifi/tether/WifiTetherBasePreferenceController.java
@@ -17,7 +17,7 @@
 package com.android.settings.wifi.tether;
 
 import android.content.Context;
-import android.net.ConnectivityManager;
+import android.net.TetheringManager;
 import android.net.wifi.WifiManager;
 
 import androidx.preference.Preference;
@@ -36,7 +36,7 @@
 
     protected final WifiManager mWifiManager;
     protected final String[] mWifiRegexs;
-    protected final ConnectivityManager mCm;
+    protected final TetheringManager mTm;
     protected final OnTetherConfigUpdateListener mListener;
 
     protected Preference mPreference;
@@ -46,8 +46,8 @@
         super(context);
         mListener = listener;
         mWifiManager = (WifiManager) context.getSystemService(Context.WIFI_SERVICE);
-        mCm = (ConnectivityManager) context.getSystemService(Context.CONNECTIVITY_SERVICE);
-        mWifiRegexs = mCm.getTetherableWifiRegexs();
+        mTm = (TetheringManager) context.getSystemService(Context.TETHERING_SERVICE);
+        mWifiRegexs = mTm.getTetherableWifiRegexs();
     }
 
     @Override
diff --git a/src/com/android/settings/wifi/tether/WifiTetherPreferenceController.java b/src/com/android/settings/wifi/tether/WifiTetherPreferenceController.java
index 5049002..70b6a45 100644
--- a/src/com/android/settings/wifi/tether/WifiTetherPreferenceController.java
+++ b/src/com/android/settings/wifi/tether/WifiTetherPreferenceController.java
@@ -18,7 +18,7 @@
 
 import android.annotation.NonNull;
 import android.content.Context;
-import android.net.ConnectivityManager;
+import android.net.TetheringManager;
 import android.net.wifi.SoftApConfiguration;
 import android.net.wifi.WifiClient;
 import android.net.wifi.WifiManager;
@@ -44,7 +44,7 @@
 
     private static final String WIFI_TETHER_SETTINGS = "wifi_tether";
 
-    private final ConnectivityManager mConnectivityManager;
+    private final TetheringManager mTetheringManager;
     private final String[] mWifiRegexs;
     private final WifiManager mWifiManager;
     private final Lifecycle mLifecycle;
@@ -62,10 +62,9 @@
     WifiTetherPreferenceController(Context context, Lifecycle lifecycle,
             boolean initSoftApManager) {
         super(context);
-        mConnectivityManager =
-                (ConnectivityManager) context.getSystemService(Context.CONNECTIVITY_SERVICE);
+        mTetheringManager = context.getSystemService(TetheringManager.class);
         mWifiManager = (WifiManager) context.getSystemService(Context.WIFI_SERVICE);
-        mWifiRegexs = mConnectivityManager.getTetherableWifiRegexs();
+        mWifiRegexs = mTetheringManager.getTetherableWifiRegexs();
         mLifecycle = lifecycle;
         if (lifecycle != null) {
             lifecycle.addObserver(this);
diff --git a/src/com/android/settings/wifi/tether/WifiTetherSettings.java b/src/com/android/settings/wifi/tether/WifiTetherSettings.java
index 0529b7a..939f077 100644
--- a/src/com/android/settings/wifi/tether/WifiTetherSettings.java
+++ b/src/com/android/settings/wifi/tether/WifiTetherSettings.java
@@ -16,7 +16,7 @@
 
 package com.android.settings.wifi.tether;
 
-import static android.net.ConnectivityManager.ACTION_TETHER_STATE_CHANGED;
+import static android.net.TetheringManager.ACTION_TETHER_STATE_CHANGED;
 import static android.net.wifi.WifiManager.WIFI_AP_STATE_CHANGED_ACTION;
 
 import android.app.settings.SettingsEnums;