diff --git a/src/com/android/settings/network/telephony/Enable2gPreferenceController.java b/src/com/android/settings/network/telephony/Enable2gPreferenceController.java
index cf08d107528..d336cb47e47 100644
--- a/src/com/android/settings/network/telephony/Enable2gPreferenceController.java
+++ b/src/com/android/settings/network/telephony/Enable2gPreferenceController.java
@@ -72,7 +72,7 @@ public class Enable2gPreferenceController extends TelephonyTogglePreferenceContr
     public int getAvailabilityStatus(int subId) {
         final PersistableBundle carrierConfig = mCarrierConfigManager.getConfigForSubId(subId);
         boolean visible =
-                subId != SubscriptionManager.INVALID_SUBSCRIPTION_ID
+                SubscriptionManager.isUsableSubscriptionId(subId)
                 && carrierConfig != null
                 && !carrierConfig.getBoolean(CarrierConfigManager.KEY_HIDE_ENABLE_2G)
                 && mTelephonyManager.isRadioInterfaceCapabilitySupported(
@@ -89,6 +89,9 @@ public class Enable2gPreferenceController extends TelephonyTogglePreferenceContr
 
     @Override
     public boolean setChecked(boolean isChecked) {
+        if (!SubscriptionManager.isUsableSubscriptionId(mSubId)) {
+            return false;
+        }
         long currentlyAllowedNetworkTypes = mTelephonyManager.getAllowedNetworkTypesForReason(
                 mTelephonyManager.ALLOWED_NETWORK_TYPES_REASON_ENABLE_2G);
         boolean enabled = (currentlyAllowedNetworkTypes & BITMASK_2G) != 0;
diff --git a/tests/unit/src/com/android/settings/network/telephony/Enable2gPreferenceControllerTest.java b/tests/unit/src/com/android/settings/network/telephony/Enable2gPreferenceControllerTest.java
index 293a19dad09..5ade97953e0 100644
--- a/tests/unit/src/com/android/settings/network/telephony/Enable2gPreferenceControllerTest.java
+++ b/tests/unit/src/com/android/settings/network/telephony/Enable2gPreferenceControllerTest.java
@@ -48,6 +48,8 @@ public final class Enable2gPreferenceControllerTest {
     @Mock
     private TelephonyManager mTelephonyManager;
     @Mock
+    private TelephonyManager mInvalidTelephonyManager;
+    @Mock
     private CarrierConfigManager mCarrierConfigManager;
 
     private PersistableBundle mPersistableBundle;
@@ -65,6 +67,8 @@ public final class Enable2gPreferenceControllerTest {
               .thenReturn(mCarrierConfigManager);
 
         doReturn(mTelephonyManager).when(mTelephonyManager).createForSubscriptionId(SUB_ID);
+        doReturn(mInvalidTelephonyManager).when(mTelephonyManager).createForSubscriptionId(
+                SubscriptionManager.INVALID_SUBSCRIPTION_ID);
 
         mPersistableBundle = new PersistableBundle();
         doReturn(mPersistableBundle).when(mCarrierConfigManager).getConfigForSubId(SUB_ID);
@@ -120,6 +124,18 @@ public final class Enable2gPreferenceControllerTest {
         assertThat(mController.getAvailabilityStatus()).isEqualTo(AVAILABLE);
     }
 
+    @Test
+    public void setChecked_invalidSubIdAndIsCheckedTrue_returnFalse() {
+        mController.init(SubscriptionManager.INVALID_SUBSCRIPTION_ID);
+        assertThat(mController.setChecked(true)).isFalse();
+    }
+
+    @Test
+    public void setChecked_invalidSubIdAndIsCheckedFalse_returnFalse() {
+        mController.init(SubscriptionManager.INVALID_SUBSCRIPTION_ID);
+        assertThat(mController.setChecked(false)).isFalse();
+    }
+
     @Test
     public void onPreferenceChange_update() {
         // Set "Enable 2G" flag to "on"