EFIBIN File MacBook Air A1466 (EMC 2632) 820-3437-B

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  • llcoolr
    Member
    • Mar 2021
    • 17
    • ALgeria

    #21
    Re: EFIBIN File MacBook Air A1466 (EMC 2632) 820-3437-B

    hi
    newbie here
    i have a1466 with firmware password
    and i have this programmer
    https://www.xeltek.com/refurbished-p...mmer-clone-en/


    https://www.xeltek-cn.com/en/sp501s.html


    can fix it


    i've already removed bios ic it's

    Attached Files
    Br. LLCOOLR

    Comment

    • llcoolr
      Member
      • Mar 2021
      • 17
      • ALgeria

      #22
      Re: EFIBIN File MacBook Air A1466 (EMC 2632) 820-3437-B

      anyone can clear firmware passcode for a1466_820_3437_b
      Attached Files
      Br. LLCOOLR

      Comment

      • peste
        Super Moderator
        • Dec 2016
        • 12676
        • ROMANIA

        #23
        Re: EFIBIN File MacBook Air A1466 (EMC 2632) 820-3437-B

        Originally posted by llcoolr
        anyone can clear firmware passcode for a1466_820_3437_b
        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

        • llcoolr
          Member
          • Mar 2021
          • 17
          • ALgeria

          #24
          Re: EFIBIN File MacBook Air A1466 (EMC 2632) 820-3437-B

          Originally posted by peste
          try..
          working good
          thxxx
          Br. LLCOOLR

          Comment

          • manusg
            Member
            • Mar 2021
            • 14
            • uruguay

            #25
            Re: EFIBIN File MacBook Air A1466 (EMC 2632) 820-3437-B

            hi
            i have a 820-3437-B with corrupted efi file
            my macbook turns on ok but it shows the folder with questionmark even with a good ssd connected, i replace the spi rom chip from a working board and it boots ok with apple logo and the bar loads up but of course it doesnt enter the system because the spi rom chip is from another mac

            i extracted the bin file from the damaged mac can anyone do the process for me to the bin file so i can load it back to the chip and be working?

            i really tried doing the process you people explained in this post but i couldnt do it because i dont have linux

            i would really appreciate

            thanks in advance
            Attached Files

            Comment

            • manusg
              Member
              • Mar 2021
              • 14
              • uruguay

              #26
              Re: EFIBIN File MacBook Air A1466 (EMC 2632) 820-3437-B

              nobody?

              Comment

              • mferna14
                Badcaps Legend
                • Jun 2018
                • 1015
                • Canada

                #27
                Re: EFIBIN File MacBook Air A1466 (EMC 2632) 820-3437-B

                Please watch this Video carefully, I learnt all from this video... Fsys & Checksum has to be corrected in order for the notebook to work. Or send me the Notebook serial # & the EMC # of your notebook, I will send you a good updated working file, Just you have to program it to the SPI BIOS & solder it.. Nothing else you have to do.
                check this useful youtube video https://www.youtube.com/watch?v=poA8HByYqTM

                Comment

                • manusg
                  Member
                  • Mar 2021
                  • 14
                  • uruguay

                  #28
                  Re: EFIBIN File MacBook Air A1466 (EMC 2632) 820-3437-B

                  My friend thank you for answering

                  I understand the video you posted the problem is that i dont have linux so i cannot use those programs

                  The bin file i uploaded is from the macbook iam trying to fix so it has the serial number inside it. The emc is 2632 and the board 820-3437-b

                  Do you need something else? If you could do this and give me the fixed bin file ready to upload it to the chip i would be really grateful!!

                  Comment

                  • peste
                    Super Moderator
                    • Dec 2016
                    • 12676
                    • ROMANIA

                    #29
                    Re: EFIBIN File MacBook Air A1466 (EMC 2632) 820-3437-B

                    Originally posted by manusg
                    My friend thank you for answering

                    I understand the video you posted the problem is that i dont have linux so i cannot use those programs

                    The bin file i uploaded is from the macbook iam trying to fix so it has the serial number inside it. The emc is 2632 and the board 820-3437-b

                    Do you need something else? If you could do this and give me the fixed bin file ready to upload it to the chip i would be really grateful!!
                    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

                    • manusg
                      Member
                      • Mar 2021
                      • 14
                      • uruguay

                      #30
                      Re: EFIBIN File MacBook Air A1466 (EMC 2632) 820-3437-B

                      Originally posted by peste
                      try..
                      no apple logo with this file
                      i load it to the chip and i have blinking folder with questionmark again

                      Comment

                      • manusg
                        Member
                        • Mar 2021
                        • 14
                        • uruguay

                        #31
                        Re: EFIBIN File MacBook Air A1466 (EMC 2632) 820-3437-B

                        Originally posted by mferna14
                        Please watch this Video carefully, I learnt all from this video... Fsys & Checksum has to be corrected in order for the notebook to work. Or send me the Notebook serial # & the EMC # of your notebook, I will send you a good updated working file, Just you have to program it to the SPI BIOS & solder it.. Nothing else you have to do.
                        check this useful youtube video https://www.youtube.com/watch?v=poA8HByYqTM
                        serial: C02LPRSYF5V7
                        emc: 2632

                        if you could do send me a good working file so i can program it to the spi i would really appreciate it

                        Comment

                        • piernov
                          Super Moderator
                          • Jan 2016
                          • 4435
                          • France

                          #32
                          Re: EFIBIN File MacBook Air A1466 (EMC 2632) 820-3437-B

                          Why not use the file that has already been posted at the beginning of this thread…?
                          https://www.badcaps.net/forum/showpo...01&postcount=4
                          OpenBoardView — https://github.com/OpenBoardView/OpenBoardView

                          Comment

                          • manusg
                            Member
                            • Mar 2021
                            • 14
                            • uruguay

                            #33
                            Re: EFIBIN File MacBook Air A1466 (EMC 2632) 820-3437-B

                            Originally posted by piernov
                            Why not use the file that has already been posted at the beginning of this thread…?
                            https://www.badcaps.net/forum/showpo...01&postcount=4

                            because i dont have linux to write the serial number into this file and do the checksum

                            Comment

                            • manusg
                              Member
                              • Mar 2021
                              • 14
                              • uruguay

                              #34
                              Re: EFIBIN File MacBook Air A1466 (EMC 2632) 820-3437-B

                              Originally posted by manusg
                              because i dont have linux to write the serial number into this file and do the checksum

                              that is why i am asking if someone can do it for me

                              Comment

                              • mferna14
                                Badcaps Legend
                                • Jun 2018
                                • 1015
                                • Canada

                                #35
                                Re: EFIBIN File MacBook Air A1466 (EMC 2632) 820-3437-B

                                Here you go.. With your serial number (C02LPRSYF5V7) & 100% working BIOS dump & ME Region cleaned
                                Attached Files

                                Comment

                                • piernov
                                  Super Moderator
                                  • Jan 2016
                                  • 4435
                                  • France

                                  #36
                                  Re: EFIBIN File MacBook Air A1466 (EMC 2632) 820-3437-B

                                  You don't need Linux to use a hexadecimal editor.
                                  OpenBoardView — https://github.com/OpenBoardView/OpenBoardView

                                  Comment

                                  • Yamato
                                    New Member
                                    • Apr 2019
                                    • 8
                                    • South Africa

                                    #37
                                    Re: EFIBIN File MacBook Air A1466 (EMC 2632) 820-3437-B

                                    @Piernov, thanks so much for your video guide. My machine is up and running now. You have a new subscriber!

                                    I received an A1466 820-3437-b machine for liquid damage repair. A prior repair attempt was made and they tampered with the SPI_ROM (no idea why).
                                    I managed to get the machine to power on after doing some board level repairs
                                    but the machine would not boot to the login screen (catalina), the loading bar will reach 100% and the machine just freezes there. on High Sierra it would boot to the login screen, but as soon as you login, it freezes on the loading screen. Ordered a TL866II to re-program the bios. I battled afew hours trying to program the new chip and succeeded eventually using your guide.

                                    It took hours because I didnt have a clue how to use the programmer AND I had 3 bad SPI_ROM chips in a row (whats the chances right ?!?!), worked with 4th IC from donor board.

                                    Thanks so much!
                                    Last edited by Yamato; 07-02-2021, 08:16 AM.

                                    Comment

                                    • Yamato
                                      New Member
                                      • Apr 2019
                                      • 8
                                      • South Africa

                                      #38
                                      Re: EFIBIN File MacBook Air A1466 (EMC 2632) 820-3437-B

                                      For those of you who want to use the TL866II+ programmer under Linux.

                                      I got it to work under ubuntu.

                                      https://systemembedded.eu/viewtopic.php?t=44

                                      Comment

                                      • bsmart
                                        New Member
                                        • Sep 2021
                                        • 2
                                        • sousse

                                        #39
                                        Re: EFIBIN File MacBook Air A1466 (EMC 2632) 820-3437-B

                                        A1466 820-3437-B
                                        AFTER flash dump just sound no display

                                        Comment

                                        • elsomer
                                          Senior Member
                                          • Jun 2012
                                          • 50
                                          • mexico

                                          #40
                                          Re: EFIBIN File MacBook Air A1466 (EMC 2632) 820-3437-B

                                          Hi, can someone help me to unlock this dump of this macbook air 1466 emc 2632 820-3437-b , it is locked when i try to install so, thanks
                                          Attached Files

                                          Comment

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