No service after iOS 11 update
iPhone 6 Plus getting searching or no service. I can make phone calls/iMessage while on WiFi. I’ve tried these steps:
1. Turn on/off, hard shut off as well.
2. Turn on/off airplane mode, cellular, LTE, roaming.
3. Reset network settings.
4. Reset all settings. (Worked for a day only).
5. Update to 11.1 iOS and 30.1 carrier update.
6. Check time and date settings.
7. Took out SIM card.
8. Took off case.
9. No water damages.
10. Restore (Worked for a day).
Looked at multiple sites and so far it still says searching. AT&T account is good. I have 5 iPhones on my account and they have not updated and they still work. (iPhone 5s, 6, 6, 7, 7). Trying to avoid going to the Apple store as I know they will probably throw a $320 charge as I’m out of warranty. Any tips is welcomed!