i cannot switch iPhone back ON

Discussion in 'iPhone Tips, Help and Troubleshooting' started by sharu7a, Sep 30, 2008.

  1. macrumors newbie

    Sep 30, 2008
    Hi all,,

    I have the installer app on my iphone, and i had used it to download a program, however it said that i had 2 reboot my iphone 4 affects 2 occur, and i did so, but when i wanted 2 switch it back on i couldnt anymore. I dont know what to do, I also tried restoring it through itunes, but still no luck. When I do try 2 swith it on, the apple icon appears then it freezes. Can some1 plz help me

  2. macrumors newbie

    Sep 29, 2008
    DFU mode

    I had my ipod and iphone do this to me anytimes. put it in DFU mode. here is how to put it in to DFU mode.
    and then restore it. what program did you install from installer that did this?
  3. thread starter macrumors newbie

    Sep 30, 2008
  4. thread starter macrumors newbie

    Sep 30, 2008
    If i restore, will i lose all things in my iphone, i.e. msgs, contacts ...etc, especially that i want 2 unlock the iphone 2 b used with any sim.
  5. macrumors member

    Aug 26, 2008
    its always good idea to backup your data, it saves u a life

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