Firmware padlock screen won't accept password.

Discussion in 'Mac Pro' started by loveslap, Oct 1, 2018.

  1. loveslap macrumors newbie

    Joined:
    Oct 1, 2018
    Location:
    Brazil
    #1
    Mac Pro 5,1
    Missing internal serial number.
    I really want to be able to boot into recovery.
    For the longest time I couldn't remember the password. Then I used the calculator bit flipping technique
    and what do you know!! I remember that password!

    However!
    When I try to boot into recovery (holding command-R), the padlock comes up, but neither the mouse
    nor the keyboard are active/functining.. Regardless of which port I use.

    I really want to upgrade this machine to a fast 12-core rig but I'm quite worried there is a firmware virus or something
    on the motherboard. Please help!

    I have a SOIC adapter and raspberry PI and would love to get cracking on reflashing but I would need decent
    instructions, most of the online stuff refers to macbook issues.....





    p.s. nice to be posting here after a decade of lurking!
     
  2. W1SS macrumors 6502

    W1SS

    Joined:
    Aug 20, 2013
    #2
    Shutdown your Mac, remove one of the memory sticks and power it back on while pressing command + R
     
  3. loveslap thread starter macrumors newbie

    Joined:
    Oct 1, 2018
    Location:
    Brazil
    #3
    I can't even turn caps lock on and off when in the padlock screen.
    --- Post Merged, Oct 1, 2018 ---
    Tried many times but will try again. Weird this time I got a universal "no" symbol in the middle of the screen. Well hey at least thats different!
    --- Post Merged, Oct 1, 2018 ---
    Ok I'm in recovery mode. Aweseme! But it claims there is no firmware password set??? Is there a way I can definitively blow it out and get things in a pristine firmwarewise before rebooting. Is it worth having a firmware password to protect against virii?
    --- Post Merged, Oct 1, 2018 ---
    Also machine wont let me run disk first aid on my only volume whilst in recovery?? I'm on a mint high-sierra installation that has never touched the internet.
    --- Post Merged, Oct 1, 2018 ---
    WOW IT WORKED I CAN BOOT INTO RECOVERY NORMALLY NOW WITHOUT DRAMA.

    thanks!!!!
     
  4. W1SS macrumors 6502

    W1SS

    Joined:
    Aug 20, 2013
    #4
    Firmware passwords are useless on macs predating 2012 which as you have just seen can be circumvented by just changing the hardware configuration but they still add a level of protection. Just keep SIP enabled and install apps from verifiable sources if you are worried about viruses.

    Edited: misread the remainder of your post. Just upgrade to 10.13.6 and check the forums for feedback on Mojave before installing it.
     
  5. loveslap thread starter macrumors newbie

    Joined:
    Oct 1, 2018
    Location:
    Brazil
    #5
    This is an audio production machine that will never be upgraded nor placed on the internet. But it used to be so I'm worried about residual microcode/firmware/blahblahidon'treallyknow type issues. SIP is the csr protection thingy? I'm going to make a new thread about this cause I'm getting lots ofs "certificate not yet generated" messages in console I think it has to do with my motherboard not having a serial number in its firmware....
    --- Post Merged, Oct 1, 2018 ---
    hmm I just ran

    /usr/libexec/firmwarecheckers/eficheck/eficheck --integrity-check

    and the response:

    readbinaryfromkernel : no matching services found. Either this system is not supported by efi check, or you need to re-load th kext
    integritycheck: couldn't get EFI contents from kext.


    is that bad?
     
  6. chrfr macrumors 604

    Joined:
    Jul 11, 2009
    #6
    There’s no such thing as a residual password. If you changed the memory configuration and the password is shown as disabled you’re all set.
     

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5 October 1, 2018