Iphone 7 plus 4g problem
i have iphone 7 plus / ios 12.3.1 but the 4G network is not working / The 4G network operates five minutes and then the connection is broken and never comes back
iPhone 7 Plus, iOS 12
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Hello.
Have you contacted your carrier?
This might be a coverage issues or if there are any modernisation works are going on.
If they say everything is fine on their side, try to reset the network settings under Settings > General > Reset.