Activation could not be completed. Please restore the phone and install the latest version of Ios and attempt activation again. What should I do?

My phone says: activation could not be completed. Please restore the phone and install the latest version of iOS and attempt activation again. If the problem persist, please contact customer care. I activated it 3 years ago, and this massage appeared 2 days ago. What should I do?

iPhone 6, iOS 9.3.3

Posted on Jun 18, 2018 8:40 AM

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Activation could not be completed. Please restore the phone and install the latest version of Ios and attempt activation again. What should I do?

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