iPhone 4- Best unlock, backup, update?

Discussion in 'iPhone' started by CatSitter, Nov 6, 2011.

  1. CatSitter macrumors newbie

    CatSitter

    Joined:
    Nov 6, 2011
    Location:
    Mesa
    #1
    Hey!
    So I am interested in buying a used/newish iPhone 4, and then use it on the tmobile service. I understand that I will have to cut/ buy a microsim card and everything, but I have a few other questions...
    1. What is the best unlock to use. I have a Windows Vista, if that makes any difference. I don't really want to have to pay anything to unlock the phone... also, what is the difference, if there is any, between jailbreak and unlock.
    2. What if, there was a new version of iOS out, like (ex) 5.5 or something like that. How would I update my iPhone 4 to that new version while still being unlocked?
    3. If I am unlocked, can I still backup my apps and music... to iTunes?
    4. (kinda off topic) I use my iPod Touch 3g 8gb for music and such right now. How would I move all of my apps and music from the iPod Touch to the iPhone 4?
    Thanks so much!
     

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