1. Using two fingers, swipe down from the top of the screen, and then tap the Settings icon.

  2. Swipe to and then tap Software update, or System updates. It will vary between models.

  3. Tap Download and install, Check for system updates, or Check for software updates, depending on your carrier. If an update is available it should begin downloading automatically, although you may need to tap Download now on some devices.

  4. When the download is complete, follow the on-screen instructions to install the update.

You can also tap the switch to enable or disable Auto download over Wi-Fi. When this option is turned on, your phone or tablet will automatically update when it's connected to a Wi-Fi network. If this option is turned off, you will need to update your device manually.

If you'd like to see the software version currently on your device, open Settings, tap About phone or About tablet, and then tap Software information.