Here's how to ensure your Gmail, contacts, apps, etc. are backed up on your Galaxy Tab S9+ 5G.
- Backups can't be restored from a higher Android™ version onto a device with a lower Android version.
- When a Google account is added to your device, previous backups are restored. This can be done by adding an existing Google account to your already active device or by signing in to the same Google account while setting up your new or reset device.