I'm on T-Mobile and it was working with the latest version about a week ago but then stopped again a few days ago and had issues with connecting. I uninstalled and used the steps from @Turtacular. And now it's been connected and provisioned and working again. However I'm curious if anyone else staying on the 20250311_04_RC01 bundle has noticed features missing, specifically photomojis and the ability to reply to specific messages. These features were there with the latest version but the RCS stopped working after a couple days with that version so I have updates turned off.