Apple MBP A1398 EMC 2881 820-3547-A

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  • bacaa
    New Member
    • Oct 2021
    • 5
    • Deutschland

    #1

    Apple MBP A1398 EMC 2881 820-3547-A

    Hello Guys, my MBP Mid 2014 A1398 EMC 2881 with a 820-3547-A Logic Board has a locked EFI N25Q064A.

    I did save the .bin File, but i am having trouble finding the serial number and paste it into a clean dump or deleting the lock.

    Could someone help me out?

    Thank you very much!
    Attached Files
  • bacaa
    New Member
    • Oct 2021
    • 5
    • Deutschland

    #2
    Re: Apple MBP A1398 EMC 2881 820-3547-A

    Additional info: I am missing a clean dump, just found it on pay sites. Furthermore i can't find my own serial number by searching for 'hwc' or 'ssn'. Did i do something wrong?

    Comment

    • peste
      Super Moderator
      • Dec 2016
      • 12882
      • ROMANIA

      #3
      Re: Apple MBP A1398 EMC 2881 820-3547-A

      Originally posted by bacaa
      Additional info: I am missing a clean dump, just found it on pay sites. Furthermore i can't find my own serial number by searching for 'hwc' or 'ssn'. Did i do something wrong?
      the posted bios is not ok..make a copy and post again..remove the bios chip from the motherboard before reading or writing ..
      Due to a lack of donations, server free space at a critical level, and possible closure of Bios Requests all donations are welcome, click:

      >>>>> https://www.badcaps.net/index.php?pageid=donate1 <<<<<

      Every donation made will go towards server fees and maintenance costs.

      Comment

      • bacaa
        New Member
        • Oct 2021
        • 5
        • Deutschland

        #4
        Re: Apple MBP A1398 EMC 2881 820-3547-A

        I can't remove the bios chip from the motherboard, as i do not have soldering capabilities.

        I connected a cable i bought as a bundle with the ch341a, but i need a soldered power supply, right?

        Is there a way to figure out if it's the 1.8V or 3.3V version?
        Last edited by bacaa; 10-18-2021, 09:47 AM. Reason: add. info

        Comment

        • SMDFlea
          Super Moderator
          • Jan 2018
          • 21037
          • UK

          #5
          Re: Apple MBP A1398 EMC 2881 820-3547-A

          Originally posted by bacaa
          I can't remove the bios chip from the motherboard, as i do not have soldering capabilities.

          I connected a cable i bought as a bundle with the ch341a, but i need a soldered power supply, right?

          Is there a way to figure out if it's the 1.8V or 3.3V version?
          Which cable ,is it a J6100 ,post a picture. Try alternative CH341A software, you`ll find ASProgrammer,Colibri and NeoProgrammer all on the forum.

          https://cdn.badcaps-static.com/pdfs/...b061b45a46.pdf
          All donations to badcaps are welcome, click on this link to donate. Thanks to all supporters

          Comment

          • bacaa
            New Member
            • Oct 2021
            • 5
            • Deutschland

            #6
            Re: Apple MBP A1398 EMC 2881 820-3547-A

            Originally posted by SMDFlea
            Which cable ,is it a J6100 ,post a picture. Try alternative CH341A software, you`ll find ASProgrammer,Colibri and NeoProgrammer all on the forum.

            https://cdn.badcaps-static.com/pdfs/...b061b45a46.pdf
            Yes, i think it's a J6100. But if i need an external power supply it's really getting difficult for me. Tried ASProgrammer and NeoProgrammer already, but i will go on. Please find two pictures of the bios chip and my setup attached.
            Attached Files

            Comment

            • SMDFlea
              Super Moderator
              • Jan 2018
              • 21037
              • UK

              #7
              Re: Apple MBP A1398 EMC 2881 820-3547-A

              Originally posted by bacaa
              Yes, i think it's a J6100. But if i need an external power supply it's really getting difficult for me. Tried ASProgrammer and NeoProgrammer already, but i will go on. Please find two pictures of the bios chip and my setup attached.
              I don`t have one of those connectors and always desolder.I can`t advise you if you need need external power or not ,someone else might be able to help you
              All donations to badcaps are welcome, click on this link to donate. Thanks to all supporters

              Comment

              • ranzoo
                Member
                • Jun 2015
                • 17
                • algeria

                #8
                macbook A1398 emc 2881 efi locked

                hello every one , i have macbook A1398 emc 2881 efi locked , and when i try to remove eeprom to dump it , it is broken , can any one give a good dump fro my mac pls

                Comment

                • ranzoo
                  Member
                  • Jun 2015
                  • 17
                  • algeria

                  #9
                  Re: macbook A1398 emc 2881 efi locked

                  problem solved with this dump
                  Attached Files

                  Comment

                  • FrancoRHCP
                    New Member
                    • Mar 2025
                    • 1
                    • Argentina

                    #10
                    Hello everyone,
                    I have a MacBook Pro that I am trying to recover, but it seems to have been locked for some reason. I purchased it secondhand, and the previous owner no longer remembers the EFI password so i have a EFI Lock
                    I'm desperate and I would like to know if anyone has access to the BIOS for this model. I would be incredibly grateful if you could share it with me. i guess i need some files for unlock my notebook.

                    A1398 emc 2881 s/n C02NP088G3Q6
                    Thank you in advance for your help.
                    Best regards,
                    Franco
                    Last edited by FrancoRHCP; 03-06-2025, 08:49 AM.

                    Comment

                    • SMDFlea
                      Super Moderator
                      • Jan 2018
                      • 21037
                      • UK

                      #11
                      Originally posted by FrancoRHCP
                      Hello everyone,
                      I have a MacBook Pro that I am trying to recover, but it seems to have been locked for some reason. I purchased it secondhand, and the previous owner no longer remembers the EFI password so i have a EFI Lock
                      I'm desperate and I would like to know if anyone has access to the BIOS for this model. I would be incredibly grateful if you could share it with me. i guess i need some files for unlock my notebook.
                      A1398 emc 2881 s/n C02NP088G3Q6
                      Thank you in advance for your help.
                      Best regards,
                      Franco
                      Post your bios backup and we can help.
                      All donations to badcaps are welcome, click on this link to donate. Thanks to all supporters

                      Comment

                      • vitahasergienko
                        New Member
                        • Sep 2018
                        • 9
                        • украина

                        #12
                        Привет,820-3547-A имеет заблокированный EFI
                        Может ли кто-нибудь мне помочь?


                        Hi, 820-3547-A has a locked EFI
                        Can anyone help me?​

                        in English please...
                        Attached Files

                        Comment

                        • peste
                          Super Moderator
                          • Dec 2016
                          • 12882
                          • ROMANIA

                          #13
                          Originally posted by vitahasergienko
                          Привет,820-3547-A имеет заблокированный EFI
                          Может ли кто-нибудь мне помочь?





                          Hi, 820-3547-A has a locked EFI
                          Can anyone help me?

                          in English please...
                          Hi, 820-3547-A has a locked EFI
                          Can anyone help me?


                          post S/N, full name and model, EMC,etc.
                          Due to a lack of donations, server free space at a critical level, and possible closure of Bios Requests all donations are welcome, click:

                          >>>>> https://www.badcaps.net/index.php?pageid=donate1 <<<<<

                          Every donation made will go towards server fees and maintenance costs.

                          Comment

                          • vitahasergienko
                            New Member
                            • Sep 2018
                            • 9
                            • украина

                            #14
                            Macbook pro A1398 EMC2745 Serial C02LX5LJFD57 820-3547-A

                            Comment

                            • peste
                              Super Moderator
                              • Dec 2016
                              • 12882
                              • ROMANIA

                              #15
                              Originally posted by vitahasergienko
                              Macbook pro A1398 EMC2745 Serial C02LX5LJFD57 820-3547-A
                              try..
                              Attached Files
                              Due to a lack of donations, server free space at a critical level, and possible closure of Bios Requests all donations are welcome, click:

                              >>>>> https://www.badcaps.net/index.php?pageid=donate1 <<<<<

                              Every donation made will go towards server fees and maintenance costs.

                              Comment

                              • vitahasergienko
                                New Member
                                • Sep 2018
                                • 9
                                • украина

                                #16
                                thank you very much everything is ok)

                                Comment

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