Getting around Firmware Password?

Discussion in 'Mac Basics and Help' started by trey5498, Aug 11, 2008.

  1. trey5498 macrumors regular

    Jun 16, 2008
    As I asked in a previous post, I work for a company that needs to get into one our macs, however the guy that was fired refuses to give the passwords and he placed one on the firmware. How do I get around the password? I read something about a button on the motherboard. Is this something?
  2. Julien macrumors G4


    Jun 30, 2007
    You may want to check but he could be breaking a law by locking a system that doesn't belong to him. If so you could press charges and have him arrested. That would almost certainly change his tune.
  3. Darth.Titan macrumors 68030


    Oct 31, 2007
    Austin, TX
    From what I've read, you can change the physical amount of memory inside the computer by removing or adding memory DIMMs. Then zap the PRAM repeatedly to remove an Open Firmware password.
    Never had occasion to test this information myself, but hopefully this works out for you.
  4. trey5498 thread starter macrumors regular

    Jun 16, 2008
    Doesn't accept the command+option+P+R command
  5. merl1n macrumors 65816


    Mar 30, 2008
    New Jersey, USA
    Try going into the open firmware:

    At power-on, hold down command-option-o-f

    At the prompt type:

    reset-nvram (hit return key)
    When prompted for your password, enter it and press the Return key. (Note, just hit a return to leave it blank)
    It responds OK.
    reset-all (hit return key)
    mac-boot (hit return key)

    This works on a PPC mac, but I haven't tried it on an intel since the intels use EFI firmware.
  6. ElectricSheep macrumors 6502


    Feb 18, 2004
    Wilmington, DE
    You must alter the amount of memory in the machine before doing this.

    If what you need is on the disk, you can just go out and get a cheap external enclosure, pull the hard disk in that Mac, and pop it in the enclosure.
  7. kamanashi macrumors newbie

    Aug 11, 2008
    I just removed one stick of ram from my friends mac, then it wqas gone, I was able to access the disk in terminal and remove a file to make a new account. (Note: I did this on a school bought laptop which can get you into a lot of trouble) Though, I'm not sure if it has to be a certain stick or not. I Just removed one because I remembered that its stored on the ram.

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