All system updates will be done through OTA (Over-the-Air) internet updates. When an update is available, your device will automatically notify you.

You can also go into "Settings > About tablet > System Update" to check for the latest update. The System Update utility will check online to verify that your installed version is up to date. When new updates are available an icon will appear in the notification bar. A reboot of the device is needed after updating.

If you have issues installing the update try the following:

Go to Settings -> Apps -> All -> System Updates -> Force Stop -> Clear Data, then reboot and download the update again.