iPhone 7 with no cell service after iOS 15.4 update
Did IOS 15.4 update. Phone says I’m up to date but I keep getting messages saying no cell service update unsuccessful. Can’t use phone or text and says No Service
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Cellular Update Failed —> If you see an Update Failed or Apple Pay Not Available alert after iOS update or restart
If you are unable to make a call or receive; If you can't make or receive calls on your iPhone - Apple Support