diff --git a/quickstep/src/com/android/launcher3/model/WellbeingModel.java b/quickstep/src/com/android/launcher3/model/WellbeingModel.java
index cc7b712..810f4e3 100644
--- a/quickstep/src/com/android/launcher3/model/WellbeingModel.java
+++ b/quickstep/src/com/android/launcher3/model/WellbeingModel.java
@@ -43,9 +43,13 @@
 import android.util.Log;
 
 import androidx.annotation.MainThread;
+import androidx.annotation.NonNull;
 import androidx.annotation.WorkerThread;
 
 import com.android.launcher3.BaseDraggingActivity;
+import com.android.launcher3.InvariantDeviceProfile;
+import com.android.launcher3.LauncherProvider;
+import com.android.launcher3.LauncherSettings;
 import com.android.launcher3.R;
 import com.android.launcher3.config.FeatureFlags;
 import com.android.launcher3.model.data.ItemInfo;
@@ -74,6 +78,9 @@
     private static final int MSG_PACKAGE_REMOVED = 2;
     private static final int MSG_FULL_REFRESH = 3;
 
+    private static final int UNKNOWN_MINIMAL_DEVICE_STATE = 0;
+    private static final int IN_MINIMAL_DEVICE = 2;
+
     // Welbeing contract
     private static final String PATH_ACTIONS = "actions";
     private static final String PATH_MINIMAL_DEVICE = "minimal_device";
@@ -84,6 +91,8 @@
     private static final String EXTRA_MAX_NUM_ACTIONS_SHOWN = "max_num_actions_shown";
     private static final String EXTRA_PACKAGES = "packages";
     private static final String EXTRA_SUCCESS = "success";
+    private static final String EXTRA_MINIMAL_DEVICE_STATE = "minimal_device_state";
+    private static final String DB_NAME_MINIMAL_DEVICE = "minimal.db";
 
     public static final MainThreadInitializedObject<WellbeingModel> INSTANCE =
             new MainThreadInitializedObject<>(WellbeingModel::new);
@@ -121,11 +130,12 @@
                     updateWellbeingData();
                 } else if (uri.getPath().contains(PATH_MINIMAL_DEVICE)) {
                     // Wellbeing reports that minimal device state or config is changed.
-                    updateLauncherModel();
+                    updateLauncherModel(context);
                 }
             }
         };
-        FeatureFlags.ENABLE_MINIMAL_DEVICE.addChangeListener(mContext, this::updateLauncherModel);
+        FeatureFlags.ENABLE_MINIMAL_DEVICE.addChangeListener(mContext, () ->
+                updateLauncherModel(context));
 
         if (!TextUtils.isEmpty(mWellbeingProviderPkg)) {
             context.registerReceiver(
@@ -170,7 +180,6 @@
             Log.e(TAG, "Failed to register content observer for " + actionsUri + ": " + e);
             if (mIsInTest) throw new RuntimeException(e);
         }
-
         updateWellbeingData();
     }
 
@@ -208,10 +217,34 @@
         mWorkerHandler.sendEmptyMessage(MSG_FULL_REFRESH);
     }
 
-    private void updateLauncherModel() {
-        if (!FeatureFlags.ENABLE_MINIMAL_DEVICE.get()) return;
+    private void updateLauncherModel(@NonNull final Context context) {
+        if (!FeatureFlags.ENABLE_MINIMAL_DEVICE.get()) {
+            reloadLauncherInNormalMode(context);
+            return;
+        }
+        runWithMinimalDeviceConfigs((bundle) -> {
+            if (bundle.getInt(EXTRA_MINIMAL_DEVICE_STATE, UNKNOWN_MINIMAL_DEVICE_STATE)
+                    == IN_MINIMAL_DEVICE) {
+                reloadLauncherInMinimalMode(context);
+            } else {
+                reloadLauncherInNormalMode(context);
+            }
+        });
+    }
 
-        // TODO: init Launcher in minimal device / normal mode
+    private void reloadLauncherInNormalMode(@NonNull final Context context) {
+        LauncherSettings.Settings.call(context.getContentResolver(),
+                LauncherSettings.Settings.METHOD_SWITCH_DATABASE,
+                InvariantDeviceProfile.INSTANCE.get(context).dbFile);
+    }
+
+    private void reloadLauncherInMinimalMode(@NonNull final Context context) {
+        final Bundle extras = new Bundle();
+        extras.putString(LauncherProvider.KEY_LAYOUT_PROVIDER_AUTHORITY,
+                mWellbeingProviderPkg + ".api");
+        LauncherSettings.Settings.call(context.getContentResolver(),
+                LauncherSettings.Settings.METHOD_SWITCH_DATABASE,
+                DB_NAME_MINIMAL_DEVICE, extras);
     }
 
     private Uri.Builder apiBuilder() {
@@ -225,6 +258,9 @@
      */
     @WorkerThread
     private void runWithMinimalDeviceConfigs(Consumer<Bundle> consumer) {
+        if (!FeatureFlags.ENABLE_MINIMAL_DEVICE.get()) {
+            return;
+        }
         if (DEBUG || mIsInTest) {
             Log.d(TAG, "runWithMinimalDeviceConfigs() called");
         }
diff --git a/src/com/android/launcher3/LauncherProvider.java b/src/com/android/launcher3/LauncherProvider.java
index e8b5568..19a314f 100644
--- a/src/com/android/launcher3/LauncherProvider.java
+++ b/src/com/android/launcher3/LauncherProvider.java
@@ -100,10 +100,12 @@
     public static final int SCHEMA_VERSION = 28;
 
     public static final String AUTHORITY = BuildConfig.APPLICATION_ID + ".settings";
+    public static final String KEY_LAYOUT_PROVIDER_AUTHORITY = "KEY_LAYOUT_PROVIDER_AUTHORITY";
 
     static final String EMPTY_DATABASE_CREATED = "EMPTY_DATABASE_CREATED";
 
     protected DatabaseHelper mOpenHelper;
+    protected String mProviderAuthority;
 
     private long mLastRestoreTimestamp = 0L;
 
@@ -367,7 +369,8 @@
             case LauncherSettings.Settings.METHOD_WAS_EMPTY_DB_CREATED : {
                 Bundle result = new Bundle();
                 result.putBoolean(LauncherSettings.Settings.EXTRA_VALUE,
-                        Utilities.getPrefs(getContext()).getBoolean(EMPTY_DATABASE_CREATED, false));
+                        Utilities.getPrefs(getContext()).getBoolean(
+                                mOpenHelper.getKey(EMPTY_DATABASE_CREATED), false));
                 return result;
             }
             case LauncherSettings.Settings.METHOD_DELETE_EMPTY_FOLDERS: {
@@ -437,6 +440,7 @@
                                             getContext(), true /* forMigration */)));
                     return result;
                 }
+                return null;
             }
             case LauncherSettings.Settings.METHOD_PREP_FOR_PREVIEW: {
                 if (MULTI_DB_GRID_MIRATION_ALGO.get()) {
@@ -450,6 +454,23 @@
                                     () -> mOpenHelper));
                     return result;
                 }
+                return null;
+            }
+            case LauncherSettings.Settings.METHOD_SWITCH_DATABASE: {
+                if (TextUtils.equals(arg, mOpenHelper.getDatabaseName())) return null;
+                final DatabaseHelper helper = mOpenHelper;
+                if (extras == null || !extras.containsKey(KEY_LAYOUT_PROVIDER_AUTHORITY)) {
+                    mProviderAuthority = null;
+                } else {
+                    mProviderAuthority = extras.getString(KEY_LAYOUT_PROVIDER_AUTHORITY);
+                }
+                mOpenHelper = DatabaseHelper.createDatabaseHelper(
+                        getContext(), arg, false /* forMigration */);
+                helper.close();
+                LauncherAppState app = LauncherAppState.getInstanceNoCreate();
+                if (app == null) return null;
+                app.getModel().forceReload();
+                return null;
             }
         }
         return null;
@@ -492,7 +513,8 @@
     }
 
     private void clearFlagEmptyDbCreated() {
-        Utilities.getPrefs(getContext()).edit().remove(EMPTY_DATABASE_CREATED).commit();
+        Utilities.getPrefs(getContext()).edit()
+                .remove(mOpenHelper.getKey(EMPTY_DATABASE_CREATED)).commit();
     }
 
     /**
@@ -505,7 +527,7 @@
     synchronized private void loadDefaultFavoritesIfNecessary() {
         SharedPreferences sp = Utilities.getPrefs(getContext());
 
-        if (sp.getBoolean(EMPTY_DATABASE_CREATED, false)) {
+        if (sp.getBoolean(mOpenHelper.getKey(EMPTY_DATABASE_CREATED), false)) {
             Log.d(TAG, "loading default workspace");
 
             AppWidgetHost widgetHost = mOpenHelper.newLauncherWidgetHost();
@@ -553,8 +575,13 @@
      */
     private AutoInstallsLayout createWorkspaceLoaderFromAppRestriction(AppWidgetHost widgetHost) {
         Context ctx = getContext();
-        String authority = Settings.Secure.getString(ctx.getContentResolver(),
-                "launcher3.layout.provider");
+        final String authority;
+        if (!TextUtils.isEmpty(mProviderAuthority)) {
+            authority = mProviderAuthority;
+        } else {
+            authority = Settings.Secure.getString(ctx.getContentResolver(),
+                    "launcher3.layout.provider");
+        }
         if (TextUtils.isEmpty(authority)) {
             return null;
         }
@@ -694,11 +721,25 @@
         }
 
         /**
+         * Re-composite given key in respect to database. If the current db is
+         * {@link LauncherFiles#LAUNCHER_DB}, return the key as-is. Otherwise append the db name to
+         * given key. e.g. consider key="EMPTY_DATABASE_CREATED", dbName="minimal.db", the returning
+         * string will be "EMPTY_DATABASE_CREATED@minimal.db".
+         */
+        String getKey(final String key) {
+            if (TextUtils.equals(getDatabaseName(), LauncherFiles.LAUNCHER_DB)) {
+                return key;
+            }
+            return key + "@" + getDatabaseName();
+        }
+
+        /**
          * Overriden in tests.
          */
         protected void onEmptyDbCreated() {
             // Set the flag for empty DB
-            Utilities.getPrefs(mContext).edit().putBoolean(EMPTY_DATABASE_CREATED, true).commit();
+            Utilities.getPrefs(mContext).edit().putBoolean(getKey(EMPTY_DATABASE_CREATED), true)
+                    .commit();
         }
 
         public long getSerialNumberForUser(UserHandle user) {
diff --git a/src/com/android/launcher3/LauncherSettings.java b/src/com/android/launcher3/LauncherSettings.java
index 5512654..58a418e 100644
--- a/src/com/android/launcher3/LauncherSettings.java
+++ b/src/com/android/launcher3/LauncherSettings.java
@@ -354,14 +354,20 @@
 
         public static final String METHOD_PREP_FOR_PREVIEW = "prep_for_preview";
 
+        public static final String METHOD_SWITCH_DATABASE = "switch_database";
+
         public static final String EXTRA_VALUE = "value";
 
         public static Bundle call(ContentResolver cr, String method) {
-            return call(cr, method, null);
+            return call(cr, method, null /* arg */);
         }
 
         public static Bundle call(ContentResolver cr, String method, String arg) {
-            return cr.call(CONTENT_URI, method, arg, null);
+            return call(cr, method, arg, null /* extras */);
+        }
+
+        public static Bundle call(ContentResolver cr, String method, String arg, Bundle extras) {
+            return cr.call(CONTENT_URI, method, arg, extras);
         }
     }
 }