diff --git a/res/values/arrays.xml b/res/values/arrays.xml
index 97f5eadcb0a..e5f19888eb2 100644
--- a/res/values/arrays.xml
+++ b/res/values/arrays.xml
@@ -1389,12 +1389,4 @@
         <item>0</item>
     </string-array>
 
-    <!-- These values must match up with the code in UsbModeChooserActivity.java. -->
-    <string-array name="usb_available_functions">
-        <item>@string/usb_use_charging_only</item>
-        <item>@string/usb_use_file_transfers</item>
-        <item>@string/usb_use_photo_transfers</item>
-        <item>@string/usb_use_MIDI</item>
-    </string-array>
-
 </resources>
diff --git a/src/com/android/settings/deviceinfo/UsbBackend.java b/src/com/android/settings/deviceinfo/UsbBackend.java
index d19b2611a34..c44f2eb6641 100644
--- a/src/com/android/settings/deviceinfo/UsbBackend.java
+++ b/src/com/android/settings/deviceinfo/UsbBackend.java
@@ -16,6 +16,8 @@
 package com.android.settings.deviceinfo;
 
 import android.content.Context;
+import android.content.Intent;
+import android.content.IntentFilter;
 import android.hardware.usb.UsbManager;
 import android.hardware.usb.UsbPort;
 import android.hardware.usb.UsbPortStatus;
@@ -40,7 +42,13 @@ public class UsbBackend {
     private UsbPort mPort;
     private UsbPortStatus mPortStatus;
 
+    private boolean mIsUnlocked;
+
     public UsbBackend(Context context) {
+        Intent intent = context.registerReceiver(null,
+                new IntentFilter(UsbManager.ACTION_USB_STATE));
+        mIsUnlocked = intent.getBooleanExtra(UsbManager.USB_DATA_UNLOCKED, false);
+
         mUserManager = UserManager.get(context);
         mUsbManager = context.getSystemService(UsbManager.class);
 
@@ -70,7 +78,7 @@ public class UsbBackend {
     }
 
     public int getUsbDataMode() {
-        if (!mUsbManager.isUsbDataUnlocked()) {
+        if (!mIsUnlocked) {
             return MODE_DATA_NONE;
         } else if (mUsbManager.isFunctionEnabled(UsbManager.USB_FUNCTION_MTP)) {
             return MODE_DATA_MTP;
@@ -123,7 +131,8 @@ public class UsbBackend {
     }
 
     public boolean isModeSupported(int mode) {
-        if (mRestricted && (mode & MODE_DATA_MASK) != MODE_DATA_NONE) {
+        if (mRestricted && (mode & MODE_DATA_MASK) != MODE_DATA_NONE
+                && (mode & MODE_DATA_MASK) != MODE_DATA_MIDI) {
             // No USB data modes are supported.
             return false;
         }
diff --git a/src/com/android/settings/deviceinfo/UsbModeChooserActivity.java b/src/com/android/settings/deviceinfo/UsbModeChooserActivity.java
index 8f5a6a80993..77fc388f5a8 100644
--- a/src/com/android/settings/deviceinfo/UsbModeChooserActivity.java
+++ b/src/com/android/settings/deviceinfo/UsbModeChooserActivity.java
@@ -51,6 +51,7 @@ public class UsbModeChooserActivity extends Activity {
 
     @Override
     protected void onCreate(@Nullable Bundle savedInstanceState) {
+
         super.onCreate(savedInstanceState);
 
         mLayoutInflater = LayoutInflater.from(this);