HT202340: iPhone: Understanding SIM cards

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Q: woke up this morning and iPhone 4s says SIM failure

my phone went to bed with me...plugged her in, and woke up to a triangle with an explanation mark in the middle...now it says Invalid Sim....i havent done a thing yet to the phone, but what should i do?

iPhone 4S

Posted on Jul 17, 2012 6:26 AM

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Q: woke up this morning and iPhone 4s says SIM failure

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