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  1. #1


    Member Since
    May 04, 2012
    Posts
    3
    Exclamation HELP! Trying to update firmware! And locked out of ADMIN
    I have an old iMac G3 slot loading running on OS 9.2. I do not have the admin password or access. I am trying to update the firmware so I can update the OS however it was previously a school computer and is extremely locked down. I do have access to the general account but there's not much available on that. I have the firmware updates on CD. There is no open firmware password. When I try to enter the command terminal or single user mode - I cannot. I boot up holding "apple" + S but it just boots up like normal. How can I fix this? Either by getting into SUM or the command terminal or any other way of being allowed to update the firmware so I can install the new OS!! Thanks!

  2. #2

    chscag's Avatar
    Member Since
    Jan 23, 2008
    Location
    Fort Worth, Texas
    Posts
    48,493
    Specs:
    Late 2013 27" iMac, iPad 3, iPhone 6s+, iPhone 6+, 3 iPods, El Capitan
    It sure sounds like that machine has a firmware password locking it down. Are you sure it doesn't have one?

  3. #3


    Member Since
    May 04, 2012
    Posts
    3
    Yes, I booted to openfirmware and entered "setenv security-mode none" and that worked fine. Before that I even set my own password. But if you have any ideas. . . I'm open.

  4. #4

    harryb2448's Avatar
    Member Since
    Nov 28, 2007
    Location
    Nambucca Heads Australia
    Posts
    21,999
    Specs:
    Imac 27" Retina 5K, 512GB Flash Storage, 3.3Ghz, 16GB memory, OS X.11.5.
    Have a look at this link and check again it is not firmware password protected as chscag suggested. Scroll down until you see the padlock. Was used in a great many schools as an anti-theft protection measure.

    Setting up firmware password protection in Mac OS X
    Hang on to those original install discs like grim death! Using OS X.7 or later make a bootable USB thumb drive before running Installer!

  5. #5


    Member Since
    May 04, 2012
    Posts
    3
    Following the link, that webpage states that it "Requires the password to use the Startup Manager, accessed by pressing the Option key during startup (see below)" but when I use the Option Key I can access that page and change the startup without a password. Also, most of that page is for OS X . . . I will try setting the password myself and see but how can I use it to change the Admin password? Someone else on a diff. forum mentioned that OS 9 doesn't have SUM or a command terminal? Is that correct?

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