When there are updates for the application & Deeper unit (either in Google Play or iTunes, depending on which smartphone you are using), you simply update the app and wait until it is successfully updated.
Then you simply connect your Deeper to a power source (charger) and it will turn on.
Then open up your Deeper app on your smartphone or tablet and the app will update your Deeper automatically.
Please note that the Deeper will be flashed with new features IF there are firmware upgrades. If not, only the app will be updated. This is done automatically.
Simple and straight forward.