Can I switch SIM's without any damage?

Discussion in 'Jailbreaks and iOS Hacks' started by duramaxman1, Dec 7, 2010.

  1. duramaxman1 macrumors member

    Joined:
    Nov 4, 2010
    #1
    I JB/UN a 3G for a friend using redsn0w, I need to know if I take the SIM out of my iPhone 4 which is JB BUT not unlocked and put in the 3G. Will it change anything on my SIM when I put it back in my phone? My iPhone4 is running 4.1, the 3G is 4.2. 6.15
     
  2. maturola macrumors 68040

    maturola

    Joined:
    Oct 29, 2007
    Location:
    Atlanta, GA
    #2
    Well... technically, there is not issue, however mechanically it won't work unless you got an adapter. iP4 use MIcroSIM while the 3G use a regular size SIM.

    [​IMG][​IMG]

    Also If you use the phone 3G with your iP4 SIM, AT&T will notice that you are using another phone, but there isn;t really a change of data plan or anything since they are both iphones.
     
  3. ulbador macrumors 68000

    ulbador

    Joined:
    Feb 11, 2010
    #3
    I think it takes them a while to notice. I sold my iPhone 3G at least three months before the IP4 was released. During that time I used a myTouch 3G and a GoPhone dumbPhone and they never took me off my unlimited iPhone data plan.
     
  4. Applejuiced macrumors Westmere

    Applejuiced

    Joined:
    Apr 16, 2008
    Location:
    At the iPhone hacks section.
    #4
    They wont take it off. That will mean less money for them.
    They just add a data if you're using an iPhone without one.
     
  5. duramaxman1 thread starter macrumors member

    Joined:
    Nov 4, 2010
    #5
    I had no idea they were different, all I want to do is see if the UN works. The JB is working fine, and it shows the BB as 6.15.
     
  6. maturola macrumors 68040

    maturola

    Joined:
    Oct 29, 2007
    Location:
    Atlanta, GA
    #6
    If you want to try the unlock, you need another carrier SIM, phones are lock to the carrier not the SIM, meaning that any AT&T SIM will work on Any AT&T locked phone.
     

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