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MacBook Pro A1502 (820-3476-A) password

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  • mograinne
    Member
    • Jul 2015
    • 30
    • Slovakia

    #81
    Hello, need to remove EFI Password, Thanks
    MacBook A1502 EMC: 2875
    SN: C02RV0AXFVH8
    Attached Files

    Premium supporters get full download access and other benefits.

    Comment

    • shiyab
      Badcaps Legend
      • Sep 2023
      • 3053
      • india

      #82
      Originally posted by mograinne
      Hello, need to remove EFI Password, Thanks
      MacBook A1502 EMC: 2875
      SN: C02RV0AXFVH8
      hi try
      Attached Files

      Premium supporters get full download access and other benefits.

      Comment

      • mograinne
        Member
        • Jul 2015
        • 30
        • Slovakia

        #83
        Originally posted by shiyab

        hi try
        It works, Thank you.

        Comment

        • malzoaabi
          New Member
          • Sep 2017
          • 5
          • sweden

          #84
          Hello everyone,

          I need help removing EFI firmware lock from a MacBook Pro A1502.

          Board number:820-3476-A

          BIOS chip:Macronix MX25L6406E (8MB)

          Issue:The MacBook shows EFI firmware password lock before booting macOS or recovery.

          What I already did:

          Read full 8MB dump successfully using Revelprog IS

          Saved original backup

          Device still fully working

          I attached:

          Original BIOS dump

          Board photo

          BIOS chip photo

          Could someone please help patch/unlock the dump while keeping serial number and board data intact?

          Thanks in advance
          Attached Files

          Premium supporters get full download access and other benefits.

          Comment


          • peste
            peste commented
            Editing a comment
            post merged...next time look for a thread with the name and model, motherboard model of the laptop, and post there, if you can't find it, then make a new thread..

          • malzoaabi
            malzoaabi commented
            Editing a comment
            MacBook Pro Retina 13" A1502
            EMC 2678

            Board number:
            820-3476-A

            BIOS chip:
            MX25L6406E 8MB

            Issue:
            EFI firmware password lock

            Serial Number:
            C02LM85AFH01

            Attached:
            Original BIOS dump read with Revelprog IS programmer.

            Thanks.
        • peste
          Super Moderator
          • Dec 2016
          • 15184
          • ROMANIA

          #85
          post the original contents of the bios chip..

          post S/N, full name and model, motherboard model,EMC,,etc.
          If you have found our forum useful please consider supporting us. Subscribe for a small monthly fee and receive extra benefits including our boardview / schematic archive.

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          Comment

          • peste
            Super Moderator
            • Dec 2016
            • 15184
            • ROMANIA

            #86
            Originally posted by peste
            post the original contents of the bios chip..

            post S/N, full name and model, motherboard model,EMC,,etc.
            try..
            Attached Files

            Premium supporters get full download access and other benefits.

            If you have found our forum useful please consider supporting us. Subscribe for a small monthly fee and receive extra benefits including our boardview / schematic archive.

            It only takes 1 minute:
            https://www.badcaps.net/settings/subscriptions

            Comment

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