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Phone keeps saying no sim installed. How do I fix this problem?

My phone just started saying no sim, invalid sim i don’t understand why????

iPhone XR, iOS 12.1

Posted on Nov 28, 2018 4:44 PM

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Posted on Nov 28, 2018 4:49 PM

Remove the SIM, clean it off, and re-insert it. If that doesn't fix it, get a replacement SIM from your carrier. If that doesn't fix it, make an appointment at the genius bar and have the phone checked.

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Phone keeps saying no sim installed. How do I fix this problem?

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