Can't get into DFU mode

Discussion in 'Jailbreaks and iOS Hacks' started by krib, Jan 10, 2011.

  1. krib, Jan 10, 2011
    Last edited: Jan 10, 2011

    krib macrumors newbie

    Sep 5, 2010
    I'm having an odd problem that has me stumped, and am wondering if anyone here can shed some light.

    I have a 3GS running 4.2.1 and 5.15.04. I want to jailbreak it with the new Redsn0w beta.

    I'm fairly sure my phone has the old bootrom because the serial number says it was made in week 38, but I want to double check. I just don't remember which one it has. And I'll have to get into DFU to JB anyway.

    But I can't seem to get into DFU because the phone gives me the Apple logo too fast.

    All the instructions say to USB it, shut it down, and then hold down Home and Sleep for ~ten seconds, then just Home until iTunes sees the phone in recovery and the screen is black. That's great, but about ONE second after I hold both buttons, I get the apple logo, and then the phone boots.

    What can be done? Am I doing it wrong? I feel like I must be, but I'm following the instructions exactly. I've done this about ten times and it just instaboots on me.

    *edit* Forgot to mention it's a Mac iPhone.
  2. spamdumpster macrumors 6502a

    Jan 22, 2008
    Are you connected to mac by usb when you start the process? I think you need to be.
  3. krib thread starter macrumors newbie

    Sep 5, 2010
    Yes. I've tried it both ways (connected and not connected). Is iReb safe to use for this problem? I just came across it with more googling.
  4. thelatinist macrumors 603


    Aug 15, 2009
    Connecticut, USA
    Just keep trying. If you are not getting into DFU mode it can only be because you are releasing the button too early or too late. Follow the instructions here and just keep trying until you get it right.

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