Cellular data error on iPhone 7?

Thanks for posting in the Apple Support Communities genomaneno,

We understand you're having an issue with cellular data, and are unable to make or receive calls from your iPhone.

The following page offers some specific steps that may resolve this for you: If you see an Update Failed or Apple Pay Not Available alert after iOS update or restart

If you need more help after completing the steps on that page, Contact Apple Support

Take care!

As it is an iPhone 7 also see this→iPhone 7 Repair Program for "No Service" Issues - Apple Support