diff --git a/res/values/strings.xml b/res/values/strings.xml
index 1f06276..f5447e5 100644
--- a/res/values/strings.xml
+++ b/res/values/strings.xml
@@ -2718,6 +2718,10 @@
     <string name="sim_change_succeeded">SIM PIN changed successfully</string>
     <!-- SIM card lock settings screen, toast after not entering correct SIM PIN [CHAR LIMIT=40] -->
     <string name="sim_lock_failed">Can\u2019t change SIM card lock state.\nPossibly incorrect PIN.</string>
+    <!-- SIM card lock settings screen, toast after disabling PIN failed from modem -->
+    <string name="sim_pin_disable_failed">Can\'t disable PIN.</string>
+    <!-- SIM card lock settings screen, toast after enabling PIN failed from modem -->
+    <string name="sim_pin_enable_failed">Can\'t enable PIN.</string>
     <!-- SIM card lock settings screen, SIM PIN dialog button labels: [CHAR LIMIT=40] -->
     <string name="sim_enter_ok">OK</string>
     <!-- SIM card lock settings screen, SIM PIN dialog button labels: [CHAR LIMIT=40] -->
diff --git a/src/com/android/settings/IccLockSettings.java b/src/com/android/settings/IccLockSettings.java
index 7d493eb..2ff6931 100644
--- a/src/com/android/settings/IccLockSettings.java
+++ b/src/com/android/settings/IccLockSettings.java
@@ -44,6 +44,7 @@
 import android.widget.TabWidget;
 import android.widget.Toast;
 import com.android.internal.logging.nano.MetricsProto.MetricsEvent;
+import com.android.internal.telephony.CommandException;
 import com.android.internal.telephony.Phone;
 import com.android.internal.telephony.PhoneFactory;
 import com.android.internal.telephony.TelephonyIntents;
@@ -121,7 +122,7 @@
             AsyncResult ar = (AsyncResult) msg.obj;
             switch (msg.what) {
                 case MSG_ENABLE_ICC_PIN_COMPLETE:
-                    iccLockChanged(ar.exception == null, msg.arg1);
+                    iccLockChanged(ar.exception == null, msg.arg1, ar.exception);
                     break;
                 case MSG_CHANGE_ICC_PIN_COMPLETE:
                     iccPinChanged(ar.exception == null, msg.arg1);
@@ -451,12 +452,25 @@
         mPinToggle.setEnabled(false);
     }
 
-    private void iccLockChanged(boolean success, int attemptsRemaining) {
+    private void iccLockChanged(boolean success, int attemptsRemaining, Throwable exception) {
         if (success) {
             mPinToggle.setChecked(mToState);
         } else {
-            Toast.makeText(getContext(), getPinPasswordErrorMessage(attemptsRemaining),
-                    Toast.LENGTH_LONG).show();
+            if (exception instanceof CommandException) {
+                CommandException.Error err = ((CommandException)(exception)).getCommandError();
+                if (err == CommandException.Error.PASSWORD_INCORRECT) {
+                    Toast.makeText(getContext(), getPinPasswordErrorMessage(attemptsRemaining),
+                            Toast.LENGTH_LONG).show();
+                } else {
+                    if (mToState) {
+                        Toast.makeText(getContext(), mRes.getString
+                               (R.string.sim_pin_enable_failed), Toast.LENGTH_LONG).show();
+                    } else {
+                        Toast.makeText(getContext(), mRes.getString
+                               (R.string.sim_pin_disable_failed), Toast.LENGTH_LONG).show();
+                    }
+                }
+            }
         }
         mPinToggle.setEnabled(true);
         resetDialogState();