If you are having trouble downloading from the Google Play Store, there is a simple solution. First, reboot your phone and go to Settings → Apps → Google Play Store → Clear cache and data. Then, try to download again. This should resolve any issues you are experiencing.

Samsung's Smart Switch app allows you to transfer your contacts, music, photos, calendar, text messages, device settings, and more to your new Galaxy device. The app can also help you find your favorite apps or suggest similar ones on Google Play. The app is available for Android, iOS, and Windows Mobile devices.

Smart Switch supports wireless transfers for Android devices running version 4.0 or higher, wired transfers for Android devices running version 4.3 or higher, and wired transfers from iOS devices running version 5.0 or higher. The app can also import from iCloud for iOS devices running version 4.2.1 or higher, and can transfer data from Windows Mobile devices running Windows OS 10.

The app can transfer contacts, calendar data, messages, photos, music, videos, call logs, memos, alarms, Wi-Fi settings, wallpapers, documents, app data (Galaxy devices only), and home layouts (Galaxy devices only). The app requires certain permissions, including access to your phone, call logs, contacts, calendar, SMS, storage, microphone, Bluetooth, and location. If your system software version is lower than Android 6.0, you will need to update the software to configure app permissions.