iPhone 13 mini not recognizing new carrier after switching
I have an iphone 13 mini loaded with iOS 26.2.1 . Have just changed mobile service provider (but kept my number), but the iphone doesn't recognise and use the new service provider. I have tried Turn off iMessage. Go to Settings. Scroll down and tap on Messages. Switch off iMessage. Turn off your phone. Wait 5-10 minutes, then turn it on again. No change. I have tried Network reset (Settings > General > Transfer or Reset iPhone > Reset > Reset Network Settings Upon switching on, agree to switching Facetime and i-messanger back on. Cycle through another off/on) - this time when going into Mobile Service, the screen was blank as the iphone rest, but then it reset with my old provider - it is as if the reset isn't going back to wiped factory settings. Tried this reset a few times, always goes back to the old provider. New provider is adamant that they have the number and it is live. How do I fix?
iPhone 16 Pro, iOS 26
