diff --git a/src/com/android/settings/bluetooth/AdvancedBluetoothDetailsHeaderController.java b/src/com/android/settings/bluetooth/AdvancedBluetoothDetailsHeaderController.java
index 7e10043..e245c22 100644
--- a/src/com/android/settings/bluetooth/AdvancedBluetoothDetailsHeaderController.java
+++ b/src/com/android/settings/bluetooth/AdvancedBluetoothDetailsHeaderController.java
@@ -92,7 +92,8 @@
     public int getAvailabilityStatus() {
         final boolean advancedEnabled = DeviceConfig.getBoolean(DeviceConfig.NAMESPACE_SETTINGS_UI,
                 SettingsUIDeviceConfig.BT_ADVANCED_HEADER_ENABLED, true);
-        final boolean untetheredHeadset = BluetoothUtils.getBooleanMetaData(
+        final boolean untetheredHeadset = mCachedDevice != null
+                && BluetoothUtils.getBooleanMetaData(
                 mCachedDevice.getDevice(), BluetoothDevice.METADATA_IS_UNTETHERED_HEADSET);
         return advancedEnabled && untetheredHeadset ? AVAILABLE : CONDITIONALLY_UNAVAILABLE;
     }
diff --git a/src/com/android/settings/bluetooth/BluetoothDeviceDetailsFragment.java b/src/com/android/settings/bluetooth/BluetoothDeviceDetailsFragment.java
index c31b13e..59c5078 100644
--- a/src/com/android/settings/bluetooth/BluetoothDeviceDetailsFragment.java
+++ b/src/com/android/settings/bluetooth/BluetoothDeviceDetailsFragment.java
@@ -23,6 +23,7 @@
 import android.content.Context;
 import android.os.Bundle;
 import android.provider.DeviceConfig;
+import android.util.Log;
 import android.view.Menu;
 import android.view.MenuInflater;
 import android.view.MenuItem;
@@ -107,12 +108,13 @@
         mDeviceAddress = getArguments().getString(KEY_DEVICE_ADDRESS);
         mManager = getLocalBluetoothManager(context);
         mCachedDevice = getCachedDevice(mDeviceAddress);
+        super.onAttach(context);
         if (mCachedDevice == null) {
             // Close this page if device is null with invalid device mac address
+            Log.w(TAG, "onAttach() CachedDevice is null!");
             finish();
             return;
         }
-        super.onAttach(context);
         use(AdvancedBluetoothDetailsHeaderController.class).init(mCachedDevice);
 
         final BluetoothFeatureProvider featureProvider = FeatureFactory.getFactory(