Random No Service Issue
So I had this iPhone 6S stored for like a year, was working fine when stored, not being used for months, and now I got a new battery, replaced it without any issues and I got random No Service, sometimes it does get 3G/4G, I can make calls, but I cannot use cellular data (ie navigate to any website).
I have tried:
- unplugging and cleaning the so called "cellular antenna" and that antenna cable also.
- resetting phone to factory settings
- tried other SIM cards
- updating to the latest iOS
Although I am still confused to what is exactly the cellular data and if replacing it could fix the issue... I unplugged and cleaned the one on the top left corner, but there's another one near the speaker, which has the cellular cable connected.
Would appreciate any help on what else to try to fix it.