It may be necessary to whitelist the following URLs:

•    https://otaupdate.prometheanworld.com 
•    cdn-otaupdate.prometheanworld.com

Tap the setting icon in the bottom left corner.

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Tap the gear icon.

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Tap Update.

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Tap Online update.

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Follow the instructions on screen to first download the update.

Once it has finished downloading, make sure you install the update by tapping the button on screen.

Your device will reboot once the update has been installed.

To confirm the ActivConnect has been updated to the latest version, go back to the Update screen.