diff --git a/app/src/main/java/nodomain/freeyourgadget/gadgetbridge/LockHandler.java b/app/src/main/java/nodomain/freeyourgadget/gadgetbridge/LockHandler.java
index 1f091fb0..70fb5b63 100644
--- a/app/src/main/java/nodomain/freeyourgadget/gadgetbridge/LockHandler.java
+++ b/app/src/main/java/nodomain/freeyourgadget/gadgetbridge/LockHandler.java
@@ -3,16 +3,10 @@ package nodomain.freeyourgadget.gadgetbridge;
 import android.database.sqlite.SQLiteDatabase;
 import android.database.sqlite.SQLiteOpenHelper;
 
-import java.util.List;
-
-import nodomain.freeyourgadget.gadgetbridge.GBApplication;
 import nodomain.freeyourgadget.gadgetbridge.database.DBHandler;
 import nodomain.freeyourgadget.gadgetbridge.database.DBOpenHelper;
-import nodomain.freeyourgadget.gadgetbridge.devices.SampleProvider;
-import nodomain.freeyourgadget.gadgetbridge.entities.AbstractActivitySample;
 import nodomain.freeyourgadget.gadgetbridge.entities.DaoMaster;
 import nodomain.freeyourgadget.gadgetbridge.entities.DaoSession;
-import nodomain.freeyourgadget.gadgetbridge.model.ActivitySample;
 
 /**
  * A dummy DBHandler that does nothing more than implementing the release() method.
diff --git a/app/src/main/java/nodomain/freeyourgadget/gadgetbridge/database/DBHelper.java b/app/src/main/java/nodomain/freeyourgadget/gadgetbridge/database/DBHelper.java
index 6b19cd8b..33b54865 100644
--- a/app/src/main/java/nodomain/freeyourgadget/gadgetbridge/database/DBHelper.java
+++ b/app/src/main/java/nodomain/freeyourgadget/gadgetbridge/database/DBHelper.java
@@ -28,7 +28,6 @@ import nodomain.freeyourgadget.gadgetbridge.model.ActivityUser;
 import nodomain.freeyourgadget.gadgetbridge.util.DateTimeUtils;
 import nodomain.freeyourgadget.gadgetbridge.util.DeviceHelper;
 import nodomain.freeyourgadget.gadgetbridge.util.FileUtils;
-import nodomain.freeyourgadget.gadgetbridge.util.GBPrefs;
 
 public class DBHelper {
     private final Context context;