Sim not valid
I got a iPhone and it says that my sim is not valid and I need to contact my service provider to unlock it. Who and how do I contact these providers?
iPhone 6 Plus, iOS 11
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If you are seeing an error that the SIM is not valid, that is different than a SIM Unsupported as the other poster has provided. See this for help, If you get an alert about the SIM card in your iPhone - Apple Support The service provider is your cellular carrier, the company that provides you with your cell service.
