Question about swapping SIM

Discussion in 'iPhone Tips, Help and Troubleshooting' started by iFalcon, Sep 30, 2009.

  1. iFalcon macrumors regular

    Sep 6, 2007
    Hi -

    My wife and I just signed up with AT&T last night and bought two 3GS. One thing she noticed is our screens are a little different. Mine have a little more yellow and hers appears to be more blue.

    From reading forums today, it appears the yellow screen is just a variation of the LCD. My wife just so happens to like my slight yellow screen a little more. The display color doesn't matter to me. In fact, I'll can't even really tell much difference.

    Is it okay if we simply swap phones and of course swap SIM cards so we have our correct phone numbers? I wasn't sure if that was an issue with AT&T or Apple by doing that since we just signed up yesterday.

  2. iFalcon thread starter macrumors regular

    Sep 6, 2007
  3. mgamber macrumors 6502a


    Jun 12, 2008
    Swapping sim cards should be fine. I swap mine between several other phones, two iPhones and a laptop with a 3G card and they all work. To be safe I'd put the sim cards back in their original phones before taking a phone in for service.
  4. rkb37 macrumors newbie

    Jul 24, 2009
    I've also heard that the SIM card is "married" to the iPhone when you activated it, so when it comes time to restore your iPhone or upgrade the OS, you may need to put the original SIM cards back in the iPhone it was activated with. I'm not sure if this is correct though.

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