First of all, I apologize if this is in the wrong place. Google fi is a phone service provided by google it uses tmobile and uscellular towers in the USA. I was unable to find anything about the compatibility in the forums. Having recently started using grapheneos I can say that everything works as intended. The only real issue that chafes a little is that I have to install the fi app to activate the esim. Google messages works with no fiddling including RCS chat. Just have to allow google play services messages permission. My first thought was to have it run in another user profile but it has to be on the main profile to work. Other than that no complaints.

  • de0u replied to this.

    Yep. As stated in the following forum post, Google Fi works perfectly fine on GrapheneOS. However, Sandboxed Google Play and the Google Fi app are required/mandatory or else things will not work properly after you uninstall them i.e. you'll start receiving "MMS delivery failure"-related messages.

    https://discuss.grapheneos.org/d/7950-does-grapheneos-work-with-google-fi

    There's also this forum post as well: https://discuss.grapheneos.org/d/3976-google-fi-privacy-benefits

      5 months later

      Yes, searching for '"google fi"' in the forum leads to thousands of messages containing "google" ... not terribly useful. Incidentally, I only found this somewhat recent thread by searching ... wait for it ... on Google for '"grapheneos" "google fi"'.

      Anyway, I came here to offer a more recent report on Fi and GrapheneOS. My experience since 2025030800 is that Fi service no longer works on secondary user profiles. My setup was working well until this week: Fi (and sandboxed Play Services) in primary user profile, multiple secondary profiles. Previous to 2025030800, 5G networking with Fi service worked fine in the secondary user profiles. Now when I switch away from the primary user, my signal strength icon shows reduced signal, then after several seconds, I get the '!' no signal icon and all connectivity is dead without wifi.

      Installing the Fi app in the secondary profile does not help - as a matter of fact, I could never get the Fi app to work for calls, texts, or data outside of the primary user profile.