diff --git a/src/com/android/phone/CarrierConfigLoader.java b/src/com/android/phone/CarrierConfigLoader.java
index d3792f1..a463243 100644
--- a/src/com/android/phone/CarrierConfigLoader.java
+++ b/src/com/android/phone/CarrierConfigLoader.java
@@ -107,6 +107,10 @@
     private CarrierServiceConnection[] mServiceConnection;
     // Service connection for binding to carrier config app for no SIM config.
     private CarrierServiceConnection[] mServiceConnectionForNoSimConfig;
+    // Whether we are bound to a service for each phone
+    private boolean[] mServiceBound;
+    // Whether we are bound to a service for no SIM config
+    private boolean[] mServiceBoundForNoSimConfig;
     // Whether we have sent config change broadcast for each phone id.
     private boolean[] mHasSentConfigChange;
     // Whether the broadcast was sent from EVENT_SYSTEM_UNLOCKED, to track rebroadcasts
@@ -307,7 +311,7 @@
                     final CarrierServiceConnection conn = (CarrierServiceConnection) msg.obj;
                     // If new service connection has been created, unbind.
                     if (mServiceConnection[phoneId] != conn || conn.service == null) {
-                        unbindIfBound(mContext, conn);
+                        unbindIfBound(mContext, conn, phoneId);
                         break;
                     }
                     final CarrierIdentifier carrierId = getCarrierIdentifierForPhoneId(phoneId);
@@ -316,7 +320,7 @@
                             new ResultReceiver(this) {
                                 @Override
                                 public void onReceiveResult(int resultCode, Bundle resultData) {
-                                    unbindIfBound(mContext, conn);
+                                    unbindIfBound(mContext, conn, phoneId);
                                     removeMessages(EVENT_FETCH_DEFAULT_TIMEOUT,
                                             getMessageToken(phoneId));
                                     // If new service connection has been created, this is stale.
@@ -351,7 +355,7 @@
                     } catch (RemoteException e) {
                         loge("Failed to get carrier config from default app: " +
                                 mPlatformCarrierConfigPackage + " err: " + e.toString());
-                        unbindIfBound(mContext, conn);
+                        unbindIfBound(mContext, conn, phoneId);
                         break; // So we don't set a timeout.
                     }
                     sendMessageDelayed(
@@ -371,7 +375,7 @@
                     if (mServiceConnection[phoneId] != null) {
                         // If a ResponseReceiver callback is in the queue when this happens, we will
                         // unbind twice and throw an exception.
-                        unbindIfBound(mContext, mServiceConnection[phoneId]);
+                        unbindIfBound(mContext, mServiceConnection[phoneId], phoneId);
                         broadcastConfigChangedIntent(phoneId);
                     }
                     // Put a stub bundle in place so that the rest of the logic continues smoothly.
@@ -437,7 +441,7 @@
                     final CarrierServiceConnection conn = (CarrierServiceConnection) msg.obj;
                     // If new service connection has been created, unbind.
                     if (mServiceConnection[phoneId] != conn || conn.service == null) {
-                        unbindIfBound(mContext, conn);
+                        unbindIfBound(mContext, conn, phoneId);
                         break;
                     }
                     final CarrierIdentifier carrierId = getCarrierIdentifierForPhoneId(phoneId);
@@ -446,7 +450,7 @@
                             new ResultReceiver(this) {
                                 @Override
                                 public void onReceiveResult(int resultCode, Bundle resultData) {
-                                    unbindIfBound(mContext, conn);
+                                    unbindIfBound(mContext, conn, phoneId);
                                     removeMessages(EVENT_FETCH_CARRIER_TIMEOUT,
                                             getMessageToken(phoneId));
                                     // If new service connection has been created, this is stale.
@@ -490,7 +494,7 @@
                                 + " carrierid: " + carrierId.toString());
                     } catch (RemoteException e) {
                         loge("Failed to get carrier config: " + e.toString());
-                        unbindIfBound(mContext, conn);
+                        unbindIfBound(mContext, conn, phoneId);
                         break; // So we don't set a timeout.
                     }
                     sendMessageDelayed(
@@ -511,7 +515,7 @@
                     if (mServiceConnection[phoneId] != null) {
                         // If a ResponseReceiver callback is in the queue when this happens, we will
                         // unbind twice and throw an exception.
-                        unbindIfBound(mContext, mServiceConnection[phoneId]);
+                        unbindIfBound(mContext, mServiceConnection[phoneId], phoneId);
                         broadcastConfigChangedIntent(phoneId);
                     }
                     // Put a stub bundle in place so that the rest of the logic continues smoothly.
@@ -605,7 +609,8 @@
                     if (mServiceConnectionForNoSimConfig[phoneId] != null) {
                         // If a ResponseReceiver callback is in the queue when this happens, we will
                         // unbind twice and throw an exception.
-                        unbindIfBound(mContext, mServiceConnectionForNoSimConfig[phoneId]);
+                        unbindIfBoundForNoSimConfig(mContext,
+                                mServiceConnectionForNoSimConfig[phoneId], phoneId);
                     }
                     broadcastConfigChangedIntent(phoneId, false);
                     break;
@@ -616,7 +621,7 @@
                     final CarrierServiceConnection conn = (CarrierServiceConnection) msg.obj;
                     // If new service connection has been created, unbind.
                     if (mServiceConnectionForNoSimConfig[phoneId] != conn || conn.service == null) {
-                        unbindIfBound(mContext, conn);
+                        unbindIfBoundForNoSimConfig(mContext, conn, phoneId);
                         break;
                     }
 
@@ -625,7 +630,7 @@
                             new ResultReceiver(this) {
                                 @Override
                                 public void onReceiveResult(int resultCode, Bundle resultData) {
-                                    unbindIfBound(mContext, conn);
+                                    unbindIfBoundForNoSimConfig(mContext, conn, phoneId);
                                     // If new service connection has been created, this is stale.
                                     if (mServiceConnectionForNoSimConfig[phoneId] != conn) {
                                         loge("Received response for stale request.");
@@ -657,7 +662,7 @@
                     } catch (RemoteException e) {
                         loge("Failed to get no sim carrier config from default app: " +
                                 mPlatformCarrierConfigPackage + " err: " + e.toString());
-                        unbindIfBound(mContext, conn);
+                        unbindIfBoundForNoSimConfig(mContext, conn, phoneId);
                         break; // So we don't set a timeout.
                     }
                     sendMessageDelayed(
@@ -704,9 +709,11 @@
         mOverrideConfigs = new PersistableBundle[numPhones];
         mNoSimConfig = new PersistableBundle();
         mServiceConnection = new CarrierServiceConnection[numPhones];
+        mServiceBound = new boolean[numPhones];
         mHasSentConfigChange = new boolean[numPhones];
         mFromSystemUnlocked = new boolean[numPhones];
         mServiceConnectionForNoSimConfig = new CarrierServiceConnection[numPhones];
+        mServiceBoundForNoSimConfig = new boolean[numPhones];
         logd("CarrierConfigLoader has started");
         mSubscriptionInfoUpdater = subscriptionInfoUpdater;
         mHandler.sendEmptyMessage(EVENT_CHECK_SYSTEM_UPDATE);
@@ -841,7 +848,11 @@
         try {
             if (mContext.bindService(carrierService, serviceConnection,
                     Context.BIND_AUTO_CREATE)) {
-                serviceConnection.isBound = true;
+                if (eventId == EVENT_CONNECTED_TO_DEFAULT_FOR_NO_SIM_CONFIG) {
+                    mServiceBoundForNoSimConfig[phoneId] = true;
+                } else {
+                    mServiceBound[phoneId] = true;
+                }
                 return true;
             } else {
                 return false;
@@ -1358,9 +1369,18 @@
         return mOverrideConfigs[phoneId];
     }
 
-    private void unbindIfBound(Context context, CarrierServiceConnection conn) {
-        if (conn.isBound) {
-            conn.isBound = false;
+    private void unbindIfBound(Context context, CarrierServiceConnection conn,
+            int phoneId) {
+        if (mServiceBound[phoneId]) {
+            mServiceBound[phoneId] = false;
+            context.unbindService(conn);
+        }
+    }
+
+    private void unbindIfBoundForNoSimConfig(Context context, CarrierServiceConnection conn,
+            int phoneId) {
+        if (mServiceBoundForNoSimConfig[phoneId]) {
+            mServiceBoundForNoSimConfig[phoneId] = false;
             context.unbindService(conn);
         }
     }
@@ -1585,15 +1605,11 @@
         final String pkgName;
         final int eventId;
         IBinder service;
-        // If bindService was called and return true which means unbindService
-        // must be called later to release the connection
-        boolean isBound;
 
         CarrierServiceConnection(int phoneId, String pkgName, int eventId) {
             this.phoneId = phoneId;
             this.pkgName = pkgName;
             this.eventId = eventId;
-            this.isBound = false;
         }
 
         @Override