What a problem

Hello masoom224,

We understand you're seeing No Service and receiving a message about the Mobile Data update. We'd like to help.

We see you're familiar with If you see an Update Failed or Apple Pay Not Available alert after iOS update or restart. Please follow section "What to do next" to help resolve this.

"If you continue to see either of the alerts above, take your iPhone or iPad to an Apple Authorized Service Provider or make a Genius Bar reservation at an Apple Store to set up a repair."

Take care.

iPhone 7?

If you followed all the steps outlined in the article you came here from and it didn’t work then skip to the last step and contact Apple Support.