iPhone 12 Pro Max saying invalid sim after updating to the new iOS 17.5.1

Arlene_L28 wrote:

My fiancés iPhone 12 Pro Max is saying invalid sim after updating iOS 17.5.1. He’s unable to make or receive calls. It also say SOS where the service bars should be. He called our service provider and they said that none of his information is associated with his SIM card. He’s had the phone and SIM card for over 3 years and now all of a sudden they don’t have any of his information associated with his sim. This is beyond frustrating someone PLEASE HELP!!!!!!

Your service provider is supposed to fic the issue, not sure what no information is associated with the sim means? Cellular data and sim card is your phone carrier feature not apples.