Hello, I upgraded from iPhone SE to iPhone 12. Put in my new SIM card and it says SOS on top right corner and when I go to cellular options it’s showing no network available. I’ve done everything turned off. iMessage turned off Facebook turned off phone made sure I was connected to Wi-Fi reset my network settings and nothing is working. I keep saying that my iMessage needs to be activated. Saying when I go to settings general about it states physical sims network not available. Help!
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