MacBook Pro A1502 (820-3476-A) password

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  • farouk_1994
    Badcaps Veteran
    • Mar 2021
    • 398
    • algeria

    #61
    Originally posted by SMDFlea

    The serial number in the bios you posted is different, yours is C02P4AVWG3FK , it should beC02P4AVWG3QJ

    Use MacEfiToolkit to change it with software https://github.com/MuertoGB/MacEfiToolkit or watch piernovs video and edit with a hex editor.

    https://www.badcaps.net/forum/troubl...24#post1622424
    4.3. Apple
    For 2017 and older machines, serial number is stored in Fsys store of BIOS and can be edited with hexadecimal editor. Fsys checksum needs to be fixed afterwards
    Search for "ssn", edit the serial number, save, open dump in UEFITool, go to the Fsys store and write down the suggested checksum in the panel on the right. Checksum is 4 bytes at the end of the Fsys store, between one zone of 0x00 either Gaid or another zone of 0xFF, it must be written in reverse order (so last 2 characters from UEFITool must be written first).
    See: https://www.youtube.com/watch?v=poA8HByYqTM
    Yes i changed the SN at the end it's just as my signature but it is indeed his bios file

    Comment

    • sanjiv16
      Senior Member
      • Jul 2013
      • 51
      • philippines

      #62
      hi please help efi password

      MacBook A1502
      SN: C02T44L1FVH3
      EMC: 2835

      TIA
      Attached Files

      Comment

      • shiyab
        Badcaps Legend
        • Sep 2023
        • 1606
        • india

        #63
        Originally posted by sanjiv16
        hi please help efi password

        MacBook A1502
        SN: C02T44L1FVH3
        EMC: 2835

        TIA
        TRY
        Attached Files

        Comment

        • sanjiv16
          Senior Member
          • Jul 2013
          • 51
          • philippines

          #64
          Originally posted by shiyab

          TRY
          thank you so much sir

          Comment

          • shiyab
            Badcaps Legend
            • Sep 2023
            • 1606
            • india

            #65
            Originally posted by sanjiv16

            thank you so much sir
            OK thank

            Comment

            • rabsonnjala
              mujahid
              • Apr 2021
              • 25
              • malawi

              #66
              UEFI Password removal needed . please help
              MacBook A1502
              SN: C02P50A1G3QR
              EMC: 2875​
              Attached Files

              Comment

              • shiyab
                Badcaps Legend
                • Sep 2023
                • 1606
                • india

                #67
                Originally posted by rabsonnjala
                UEFI Password removal needed . please help
                MacBook A1502
                SN: C02P50A1G3QR
                EMC: 2875​
                hi try
                Attached Files

                Comment

                • SMDFlea
                  Super Moderator
                  • Jan 2018
                  • 21886
                  • UK

                  #68
                  Originally posted by rabsonnjala
                  UEFI Password removal needed . please help
                  MacBook A1502
                  SN: C02P50A1G3QR
                  EMC: 2875​
                  The bios is corrupt, use a different one and copy your serial number to it
                  All donations to badcaps are welcome, click on this link to donate. Thanks to all supporters

                  Comment

                  • Mugi
                    Member
                    • Feb 2022
                    • 13
                    • uk

                    #69
                    hi please help efi password

                    MacBook A1502
                    SN: C02MJEDRFGYY
                    EMC: 2678
                    ​
                    Attached Files

                    Comment

                    • shiyab
                      Badcaps Legend
                      • Sep 2023
                      • 1606
                      • india

                      #70
                      Originally posted by Mugi
                      hi please help efi password

                      MacBook A1502
                      SN: C02MJEDRFGYY
                      EMC: 2678
                      ​
                      try
                      Attached Files

                      Comment

                      • Mugi
                        Member
                        • Feb 2022
                        • 13
                        • uk

                        #71
                        Thank you very much sir

                        Comment

                        • TECHO TN
                          Senior Member
                          • Jan 2024
                          • 67
                          • algeria

                          #72
                          Originally posted by peste
                          Re: MacBook Pro A1502 (820-3476-A) password



                          the password is deleted..if the bios is ok and you write without errors it should work...don't forget the PRAM reset..
                          Hello my friend
                          I have a macbook pro a1502 mid 2014
                          I removed the efi password but when i wanted to reinstall os i was surprised by an icloud pin
                          what should i do ?

                          Comment

                          • peste
                            Super Moderator
                            • Dec 2016
                            • 13585
                            • ROMANIA

                            #73
                            Originally posted by TECHO TN

                            Hello my friend
                            I have a macbook pro a1502 mid 2014
                            I removed the efi password but when i wanted to reinstall os i was surprised by an icloud pin
                            what should i do ?
                            did you reset the PRAM??
                            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

                            • TECHO TN
                              Senior Member
                              • Jan 2024
                              • 67
                              • algeria

                              #74
                              Originally posted by peste

                              did you reset the PRAM??
                              No, i don't know how i only modified my bios dump to erase the efi pass than i soldered the bios chip in its place

                              Comment

                              • TECHO TN
                                Senior Member
                                • Jan 2024
                                • 67
                                • algeria

                                #75
                                Originally posted by peste

                                did you reset the PRAM??
                                Please sir
                                Can i upload my bios original dump to clear the efi pass and icloud pin ?

                                Comment

                                • TECHO TN
                                  Senior Member
                                  • Jan 2024
                                  • 67
                                  • algeria

                                  #76
                                  Originally posted by peste

                                  did you reset the PRAM??
                                  Its ok friend, i solved the problem
                                  Thank you

                                  Comment

                                  • curiositymaster
                                    Member
                                    • Apr 2021
                                    • 45
                                    • Nigeria

                                    #77
                                    Originally posted by TECHO TN

                                    Its ok friend, i solved the problem
                                    Thank you
                                    You can help others who have the same problem in the future by posting how you solved yours. The last time I had this experience, I used another Macbook to securely erase the SSD and it worked afterwards.

                                    Comment

                                    • TECHO TN
                                      Senior Member
                                      • Jan 2024
                                      • 67
                                      • algeria

                                      #78
                                      Originally posted by curiositymaster

                                      You can help others who have the same problem in the future by posting how you solved yours. The last time I had this experience, I used another Macbook to securely erase the SSD and it worked afterwards.
                                      Sure 😉
                                      i only resetthe pram

                                      Comment

                                      • ddhlawi
                                        Senior Member
                                        • Feb 2017
                                        • 169
                                        • algerian

                                        #79
                                        Hello
                                        I have mac Book pro Bios password
                                        A1502 EMC 2678
                                        Serial : C02LRMHRFH00
                                        Attached Files

                                        Comment

                                        • danito
                                          Badcaps Legend
                                          • Jun 2016
                                          • 1095
                                          • Romania

                                          #80
                                          Originally posted by ddhlawi
                                          Hello
                                          I have mac Book pro Bios password
                                          A1502 EMC 2678
                                          Serial : C02LRMHRFH00
                                          Try
                                          Attached Files

                                          Comment

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