Open up the iPhone App Store and navigate to search.
Type TestFlight and press search.
Find the app that is named TestFlight, designed by Apple and press Download
Once the TestFlight app is downloaded, click the button below on your mobile device.
The button should take you straight to TestFlight to download the Avio Installer app.
Once the Installer app is downloaded, it should look something like this.
All done. Your app should look like this when booting up.
You’re now ready to zero offset, 10kg calibrate and more.