your iphone cannot make and receive calls
I got IPhone 7 Plus and after the software update it says” your iPhone cannot make and receive calls or access mobile data until it has been updated”. So I cannot use my phone , how to fix this problem?
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Contact your carrier. See this: https://support.apple.com/en-us/HT204027 and, see if this applies: https://support.apple.com/iphone-7-no-service