iPhone 11 - Went to No Service "Phone Not Allowed"
Yesterday I was using my Red iPhone 11 at work and was on WiFi so I didn't noticed it went offline. When I got into my car, I tried to call my girlfriend and it kept saying call failed. Swiping down to see the network status it says "No Service". I go into Settings>General>About>Network and it says Not Available, pressing it says "Phone Not Allowed". So I took the sim out and put it in my purple iPhone 11, works fine, all my missed SMS messages and MMS messages suddenly appear.
I then put the active Tmobile sim in the Red phone and No Service. Did a restart, reset network settings, toggle to 3G, nothing works. It's been running on 13.3.1 without a hitch until now so it's not a software update issue.
I checked to see if my IMEI was Blacklisted and it's not.
I followed all the trouble-shooting steps (https://support.apple.com/en-us/HT201415) to fix this and nothing is working. I did a full Restore, skip through the new phone setup and not log into iCloud, set the network to 3G and still no service. It recognizes the Sim as Mint Mobile, but it won't connect to the network no matter what sim I put in. So now I'm back to using my old 5s. I looked through others with this issue (https://discussions.apple.com/thread/250692743?page=4) and it seems they gave up, I couldn't find someone reporting a solution.
When I moved my Mint sim to the other iPhones, all my missed MMS's suddenly came in.
Would appreciate suggestions before taking it to the Apple store. I have a feeling it's either the antenna or one of the chips inside are going bad.
[Edited by Moderator]
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