You're talking about the eSim functionality which is not what the poster is asking.It's only via the TMobile network...
Well that stinks! I can’t communicate between the app and my phone when the car is at home.That is correct - no WiFi connection from the car to your home, or any other network other than BMW's server network from the internal SIM (separate, as noted, from the eSIM).
That's because updates download to your phone, and then from your phone to the car over multiple tripsSo can folks explain this? There's a setting in my BMW app that says download over WI fi only...but the car can't connect to WI fi, right? So...what am I not understanding?