I tried doing everything that was suggested when it comes to this issue but still no luck. I came across the boarder from Serbia to Montenegro and my service is unavailable. Why did this happen? I tried everything.
iPhone XS, iOS 14
The final thing to try was your network provider - maybe they have no masts in Montenegro.
No service or searching
Support article: If you see No Service or Searching on your iPhone or iPad - Apple Support
Go through the various suggestions in the support article above but if they don't help, and your network carrier can't help, then contact Apple Support for further investigation. You should be able to reach them here
Contact - Official Apple Support
or phone numbers
Contact Apple for support and service - Apple Support
My iphone says no service in montenegro
