An update is required to use cellular data on this iPhone.
Cellular data is not working on my phone
iPhone 12 Pro Max, iOS 15
User profile for user:
jdo_apple
User level:
Community Specialist
Hello def80,
We’ll be happy to lend a hand with your iPhone today. It’s important your cellular service is working so you can use your phone.
Take a look at Manually update your carrier settings on your iPhone or iPad and follow the steps found in the article.
Reach out anytime you have questions.
Tale care!