macrumors newbie
Original poster
Nov 5, 2013
My iPhone 5 brand new tmobile SIM card is not working on brand new phone from apple when updated to iOS 7. Genius bar has gone through 4 phones and still can't figure this out so left it on io6 for the time being. Does anyone know what this could be ? My old SIM card worked on iOS 7 until this week.
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