Step-by-step upgrade guidance please?

Discussion in 'iPhone' started by badlydrawnboy, Jun 17, 2010.

  1. badlydrawnboy macrumors 65816

    Oct 20, 2003
    I managed to get in an order on Tuesday, so next Thursday I should be receiving my phone. I plan to sell my 3GS after I get the new one to finance the purchase.

    My question is: how do I get my old data on to the new phone and then completely erase everything on my old phone?

    Do I first connect the iPhone 4 to my Mac and follow the steps to activate it, and then re-connect my 3GS and do a "factory reset"? Or the other way around (i.e. first do a factory reset of the 3GS, then connect the iPhone 4).

    I want to make sure I don't lose any data, of course.
  2. tritonj macrumors 6502a

    Jun 12, 2008
    backup your old phone

    restore to the new phone

    reset the old phone

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