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  1. #1
    New iPhone 4; old 3GS; Sim cards
    Daddy Elmis's Avatar
    Member Since
    Mar 28, 2006
    Posts
    390
    New iPhone 4; old 3GS; Sim cards
    okay, so I 'm thinking of getting an iPhone 4 (I'm eligible for the upgrade). I currently have a 3GS, and my son has my old 3G. If I get the 4, I would give my son my old 3GS, and sell the 3G.

    In term of the 3GS/3G switcheroo, is it as simple as swapping SIM cards from his current 3G to my old 3GS so his number etc., are all good on the 3GS?

    If so, what do I do about the "leftover" SIM to get the 3G ready to sell?

    thanks for the thoughts on this.

  2. #2
    New iPhone 4; old 3GS; Sim cards
    Raz0rEdge's Avatar
    Member Since
    Jul 17, 2009
    Location
    MA
    Posts
    8,184
    Specs:
    27" i7 iMac, 24" iMac, 13" Macbook Air, iPhone 5 & 5S, iPod Nano 7th Gen, iPad 2 16GB WiFi, iPad 3
    Yes you should be able to move the SIM from the 3G to 3GS to have it take his number over..you can sell the 3G without a SIM card since the person buying it would probably have one anyway..

    If you wanted to sell with the SIM card, you might want to give your carrier a quick call to see how to make it a 'virgin' SIM card again..

    Regards

  3. #3
    New iPhone 4; old 3GS; Sim cards
    chscag's Avatar
    Member Since
    Jan 23, 2008
    Location
    Fort Worth, Texas
    Posts
    45,212
    Specs:
    27" iMac i5, 3.2 GHz, iPad 3, iPhone 5c, iPhone 6+, 3 iPods, Yosemite
    If so, what do I do about the "leftover" SIM to get the 3G ready to sell?
    Remove it, keep it, or destroy it. Never sell a phone that you have used with the SIM card intact. Too much of a risk of personal data being left on it. And I'm not sure there is a positive way for the carrier to wipe it. They can disable it easy enough but personal data will probably still remain.

    Regards.

  4. #4
    New iPhone 4; old 3GS; Sim cards
    Daddy Elmis's Avatar
    Member Since
    Mar 28, 2006
    Posts
    390
    Great - thanks for the guidance.

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