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Week old iPhone 7 shows "invalid sim" error

Week old iPhone 7 128 gb shows "invalid sim" error intermittently. Nothing in particular seems to cause it. Just shows up randomly. If I power down and reboot it resolves for a while. I'm getting once or twice a day now. Anyone else having this issue? How do I fix it? I plan to go back to the Apple Store where I got it tomorrow.

iPhone 7, iOS 10

Posted on Sep 22, 2016 7:16 AM

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12 replies

Dec 2, 2016 4:52 AM in response to siddharthafromrochester hills

Hi...

Yes I am still working with this problem. I called Apple Care two times ( I have an open case) and the advised me to format the iPhone (1) and in the second call to change the SIM card for a new one. Even with the new YOIGO Sim Card the problem was there and on 30th November I moved to MOVISTAR ( yoigo and movistar both of them are spanish cellular companies). If the case repeat again I will go to Apple Store for a new iPhone to replace this one ( Apple Care asked me to do it).

Week old iPhone 7 shows "invalid sim" error

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