Go to edulink using the following link https://www.edulinkone.com/#!/login?code=bgs in a browser
If you get asked for a "School ID or Postcode" use either BGS or ME104DB
Enter your computer login and password
to use G Suite login and press the Google button
To download the app to your phone or tablet use the following links or search "EduLink One" on your devices app store, it will have the following app icon.
Amazon Fire Tablet