Mobile data missing on iPhone
I have iPhone 11 Pro Max in warranty and suddenly my mobile data stops working… it happens only with mobile data .. as I will be able to make calls and receive calls .. however internet will not work ..
iPhone 12
That is usually a carrier problem, so you need to contact their tech support.
One possible long shot: Do you use VPN? If so, delete the VPN profile in Settings/General/VPN & Device Management/VPN. Don't just turn it off; delete the profile.