I have a AT&T SIM working on my Teracube 2e. Here is the order of phones the SIM has been in.
- Microsoft Lumia 950 (Bought from AT&T and is a certified device)
- Nokia 6 (2017 model, not certified)
- Teracube 2e (Not certified)
I’m on a family plan with three other devices. In our AT&T account, the other three phones have pictures and state their model as they were bought from AT&T. My Nokia 6 has always been a ‘?’. Moving to the Teracube 2e hasn’t caused any changes, still the same ‘?’. Text and calling work fine.
Unrelated: My screen protector has a large air bubble due to some dust. Also the charger makes a very high pitched buzzing when charging any device.