need bios for 820-2507-A A1312 (EMC 2309)

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  • rookieme
    Badcaps Veteran
    • Oct 2014
    • 397
    • Greece

    #1

    need bios for 820-2507-A A1312 (EMC 2309)

    I need a working bios in order to test my no power on problem.
    Thank you
  • techman1025
    Badcaps Veteran
    • Jun 2014
    • 497
    • United States

    #2
    Re: need bios for 820-2507-A A1312 (EMC 2309)

    Hi
    Here is a working file and you could use it for testing ..but it will be dirty Me region to leave in you will have problem's so after if you need it fixed upload your original file and i will do it all for you even SSN#
    Techman1025
    Attached Files

    Comment

    • cyberhack
      Badcaps Veteran
      • Feb 2013
      • 466
      • Uk

      #3
      Re: need bios for 820-2507-A A1312 (EMC 2309)

      Have a look here to help
      How to Set a Clean ME Region in Apple EFI

      https://ghostlyhaks.com/blog/apple-e...lean-me-region

      Comment

      • GIFixed
        Senior Member
        • Sep 2019
        • 61
        • Denmark

        #4
        Re: need bios for 820-2507-A A1312 (EMC 2309)

        Originally posted by cyberhack
        Have a look here to help
        How to Set a Clean ME Region in Apple EFI

        https://ghostlyhaks.com/blog/apple-e...lean-me-region
        EMC 2309 A1312 Core2 Duo does NOT have ME region?

        It is not EFI?

        If you drop the BIOS bin file on ME analyzer, it says: "File does not contain Intel Engine firmware"

        If it really does have ME region and ME firmware, how do we clean ME region in this model?
        Last edited by GIFixed; 12-03-2019, 05:10 AM.

        Comment

        • piernov
          Super Moderator
          • Jan 2016
          • 4437
          • France

          #5
          Re: need bios for 820-2507-A A1312 (EMC 2309)

          No there's no ME region on Core 2 Duo machines, no need to clean it. You only have to change serial number and fix Fsys checksum.
          OpenBoardView — https://github.com/OpenBoardView/OpenBoardView

          Comment

          • pulgagr
            New Member
            • Aug 2018
            • 3
            • usa

            #6
            Re: need bios for 820-2507-A A1312 (EMC 2309)

            Hi,
            Can someone help me cleaning the password firmware from this file?

            It is a iMac A1312 EMC 2309.

            Thanks
            Attached Files

            Comment

            • piernov
              Super Moderator
              • Jan 2016
              • 4437
              • France

              #7
              Re: need bios for 820-2507-A A1312 (EMC 2309)

              Change RAM configuration and do 3x PRAM reset.
              OpenBoardView — https://github.com/OpenBoardView/OpenBoardView

              Comment

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