iphone 4 very lag so badly

Discussion in 'iPhone Tips, Help and Troubleshooting' started by tedwu100, Jul 19, 2011.

  1. tedwu100 macrumors member

    Jun 18, 2011
    My iphone 4 lags very badly, it always froze and I have tried restore to new device without backup, but it is still very laggy.
    But the funny thing is if I take out my sim card then everything suddenly runs so smoothly.
    I have no idea what the problem is?? Can anyone please help me
  2. bandofbrothers macrumors 601


    Oct 14, 2007
    Seems apparent to me !

    Get a new microsim from your network...

    rolls eyes.
  3. Abs_p macrumors 6502a

    Jul 15, 2011
  4. awadeee macrumors 68020


    Jan 21, 2011
    Viper City
    Restore as new and see if that helps. I can't see why your SIM would have anything to do with the performance.
  5. tedwu100 thread starter macrumors member

    Jun 18, 2011
    I took it to the apple store and the genius said that the phone is good, and I should go to Bell and ask them why is it lagging.
    And I already restored my phone about 10 times and it is still the same
  6. tedwu100 thread starter macrumors member

    Jun 18, 2011
    Will they give you a new sim?? I dont know I never done that

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