ATT says phone incompatible

ATT says phone incompatible, any ideas? I thought this phone was compatible with ATT

I’m using AT&T through Red Pocket and it works great. SMS, MMS all work.

Incompatible? Are you using a SIM or eSim? Have you copied the APN settings from your old phone to the new? Initially, I had an issue with data, but once I fixed the APN everything worked. Settings - Network & Internet - SIMs - AT&T or whatever shows - Access Point Names - + - create one exactly like your current working phone. See if that solves your issue. Cheers

trying as a new customer. I enter the IME and it says phone is not compatible.

Do you have the sim from the old phone? If so, put it in the Brax and see. That’s what I did and only had to adjust the APN to make it work properly for data…

trying to set up as a new customer

Sorry to say it, but there you are at a disadvantage. Did you have a previous phone and acct with a different telco? Can you setup the Brax3 to work on that system, and as @raajah says, use the sim from your old phone? Little steps at a time, because,

https://community.braxtech.net/t/brax3-telco-compatibility-united-states/28 says that AT&T is “In the process of getting approved”, and please read the notes at the bottom of that list. Does anyone have an update on this?

I took a sim from my Samsung and put it in the Brax 3 and it worked fine.

Try that, set it up on your other phone, then switch sims or transfer the eSim if you can.