diff --git a/src/com/android/settings/display/ShowOperatorNamePreferenceController.java b/src/com/android/settings/display/ShowOperatorNamePreferenceController.java
index 40eaad3..9e9bf8e 100644
--- a/src/com/android/settings/display/ShowOperatorNamePreferenceController.java
+++ b/src/com/android/settings/display/ShowOperatorNamePreferenceController.java
@@ -14,12 +14,14 @@
 package com.android.settings.display;
 
 import android.content.Context;
+import android.os.PersistableBundle;
 import android.provider.Settings;
+import android.telephony.CarrierConfigManager;
+import android.telephony.SubscriptionManager;
 
 import androidx.preference.Preference;
 import androidx.preference.SwitchPreference;
 
-import com.android.settings.R;
 import com.android.settings.core.PreferenceControllerMixin;
 import com.android.settingslib.core.AbstractPreferenceController;
 
@@ -34,7 +36,15 @@
 
     @Override
     public boolean isAvailable() {
-        return mContext.getResources().getBoolean(R.bool.config_showOperatorNameInStatusBar);
+        final CarrierConfigManager configMgr = mContext
+                .getSystemService(CarrierConfigManager.class);
+        if (configMgr == null) {
+            return false;
+        }
+        final PersistableBundle b = configMgr.getConfigForSubId(SubscriptionManager
+                .getDefaultDataSubscriptionId());
+        return b != null && b.getBoolean(CarrierConfigManager
+                .KEY_SHOW_OPERATOR_NAME_IN_STATUSBAR_BOOL, false);
     }
 
     @Override
diff --git a/tests/robotests/src/com/android/settings/display/ShowOperatorNamePreferenceControllerTest.java b/tests/robotests/src/com/android/settings/display/ShowOperatorNamePreferenceControllerTest.java
index 9026c04..6a46110 100644
--- a/tests/robotests/src/com/android/settings/display/ShowOperatorNamePreferenceControllerTest.java
+++ b/tests/robotests/src/com/android/settings/display/ShowOperatorNamePreferenceControllerTest.java
@@ -18,53 +18,62 @@
 
 import static com.google.common.truth.Truth.assertThat;
 
+import static org.mockito.Mockito.anyInt;
+import static org.mockito.Mockito.spy;
 import static org.mockito.Mockito.when;
 
 import android.content.Context;
+import android.os.PersistableBundle;
 import android.provider.Settings;
+import android.telephony.CarrierConfigManager;
 
 import androidx.preference.SwitchPreference;
 
-import com.android.settings.R;
-
 import org.junit.Before;
 import org.junit.Test;
 import org.junit.runner.RunWith;
-import org.mockito.Answers;
 import org.mockito.Mock;
 import org.mockito.MockitoAnnotations;
 import org.robolectric.RobolectricTestRunner;
+import org.robolectric.RuntimeEnvironment;
 
 @RunWith(RobolectricTestRunner.class)
 public class ShowOperatorNamePreferenceControllerTest {
 
     private static final String KEY_SHOW_OPERATOR_NAME = "show_operator_name";
 
-    @Mock(answer = Answers.RETURNS_DEEP_STUBS)
-    private Context mContext;
     @Mock
     private SwitchPreference mPreference;
+    @Mock
+    private CarrierConfigManager mConfigManager;
 
     private ShowOperatorNamePreferenceController mController;
+    @Mock
+    private PersistableBundle mConfig;
+    private Context mContext;
 
     @Before
     public void setUp() {
         MockitoAnnotations.initMocks(this);
+        mContext = spy(RuntimeEnvironment.application);
+
+        when(mConfigManager.getConfigForSubId(anyInt())).thenReturn(mConfig);
+        when(mContext.getSystemService(CarrierConfigManager.class)).thenReturn(mConfigManager);
 
         mController = new ShowOperatorNamePreferenceController(mContext);
     }
 
     @Test
     public void testIsAvailable_configIsTrue_ReturnTrue() {
-        when(mContext.getResources()
-            .getBoolean(R.bool.config_showOperatorNameInStatusBar)).thenReturn(true);
+        when(mConfig.getBoolean(CarrierConfigManager
+                .KEY_SHOW_OPERATOR_NAME_IN_STATUSBAR_BOOL, false)).thenReturn(true);
         assertThat(mController.isAvailable()).isTrue();
     }
 
     @Test
     public void testIsAvailable_configIsFalse_ReturnFalse() {
-        when(mContext.getResources()
-            .getBoolean(R.bool.config_showOperatorNameInStatusBar)).thenReturn(false);
+        when(mConfig.getBoolean(CarrierConfigManager
+                .KEY_SHOW_OPERATOR_NAME_IN_STATUSBAR_BOOL, false)).thenReturn(false);
         assertThat(mController.isAvailable()).isFalse();
     }