1. ray khan's Avatar
    Hi just moved from iphone to samsung s4 about 10 days ago phone been working perfect then all of a sudden today says no sim, Tried reseting and changing sims but no luck any ideas please
    05-16-2013 02:16 PM
  2. 20blks's Avatar
    I'm assuming you're on Att. Contact them, you may need a new sin card

    Posted via Android Central App
    05-16-2013 02:21 PM
  3. ray khan's Avatar
    im on t mobile uk, phone is opened on all networks worked perfect now any sim i put in says no sim but i still get the signal bars, also when making calls say not registered on network
    05-16-2013 02:24 PM
  4. mick00's Avatar
    I have the same problem my s4 is also 10 days old and it says no sim card. can I bring it to samsung warranty?
    07-13-2013 11:43 AM
  5. firedoug's Avatar
    This happened to me too. Went to an ATT corp. store they switched my sim and still no workie, so they sent me to the ATT repair center and gave me a new phone.

    Good Luck
    07-13-2013 03:20 PM

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