A1708 820-00840-a efi lock

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  • peste
    Super Moderator
    • Dec 2016
    • 13451
    • ROMANIA

    #141
    Re: A1708 820-00840-a efi lock

    Originally posted by byulo
    Anyone who can unlock my BIN Macbook Air A1708

    TIA

    Raul
    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

    • byulo
      ECT
      • Jun 2012
      • 94
      • Philippines

      #142
      Re: A1708 820-00840-a efi lock

      Originally posted by peste
      try..

      no BONG sound and display

      Raul

      Comment

      • JohnnyComputers
        New Member
        • Apr 2023
        • 2
        • South Africa

        #143
        Re: A1708 820-00840-a efi lock

        A1708 EMC 3164 820-00840-A
        may someone help me with unlocked bios bin file plz

        Comment

        • peste
          Super Moderator
          • Dec 2016
          • 13451
          • ROMANIA

          #144
          Re: A1708 820-00840-a efi lock

          Originally posted by JohnnyComputers
          A1708 EMC 3164 820-00840-A
          may someone help me with unlocked bios bin file plz
          post the original bios..
          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

          • cavalierks
            Member
            • Feb 2018
            • 20
            • ALGERIA

            #145
            Re: A1708 820-00840-a efi lock

            please this




            thanx to team badcaps
            Attached Files

            Comment

            • peste
              Super Moderator
              • Dec 2016
              • 13451
              • ROMANIA

              #146
              Re: A1708 820-00840-a efi lock

              Originally posted by cavalierks
              please this




              thanx to team badcaps
              I assume you want to delete the password...next time write the problem you have..read this..
              https://www.badcaps.net/forum/showthread.php?t=103570
              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

              • cavalierks
                Member
                • Feb 2018
                • 20
                • ALGERIA

                #147
                Re: A1708 820-00840-a efi lock

                Originally posted by peste
                I assume you want to delete the password...next time write the problem you have..read this..
                https://www.badcaps.net/forum/showthread.php?t=103570
                try..

                yes it password ,after try you file password removed but macbook still show blocked try after 60 minutes and fmi icloud have solution for this
                Last edited by cavalierks; 05-15-2023, 02:31 AM.

                Comment

                • Vesko356
                  VIP Moderator
                  • Aug 2018
                  • 4386
                  • Bulgaria 🇧🇬

                  #148
                  Re: A1708 820-00840-a efi lock

                  Originally posted by cavalierks
                  yes it password ,after try you file password removed but macbook still showbloacked try after 60 minutes and fmi icloud have solution for this
                  https://www.badcaps.net/forum/showth...00#post1228100

                  .
                  ----------------------------------------------------------------------------------------------------------------------------------------------------------
                  All donations to Badcaps are welcome.
                  Become a Badcaps supporter
                  >>>>> click on this link to donate <<<<<
                  Thanks to all supporters.​
                  ----------------------------------------------------------------------------------------------------------------------------------------------------------
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                  .

                  Comment

                  • cavalierks
                    Member
                    • Feb 2018
                    • 20
                    • ALGERIA

                    #149
                    Re: A1708 820-00840-a efi lock

                    after pram X3 done thank you

                    Comment

                    • AlexVG
                      Senior Member
                      • Apr 2022
                      • 138
                      • SPAIN

                      #150
                      Re: A1708 820-00840-a efi lock

                      Hi,
                      A1708
                      EMC 3164
                      Main 820-00840-A

                      I had problem with running.
                      I have checked SPI and found out this problem:
                      Detected CSE Extension 0x03 with wrong Partition Hash at FTPR > FTPR.man!

                      Then I took ME Cleared DUMP here, replaced Serial number.
                      Everything is running but I get EFI password request.
                      So, EFI is blocked.
                      Would you like help me to cut the password request please!

                      Here is my original DUMP and good dump.
                      Thank you.
                      Attached Files

                      Comment

                      • peste
                        Super Moderator
                        • Dec 2016
                        • 13451
                        • ROMANIA

                        #151
                        Re: A1708 820-00840-a efi lock

                        Originally posted by AlexVG
                        Hi,
                        A1708
                        EMC 3164
                        Main 820-00840-A

                        I had problem with running.
                        I have checked SPI and found out this problem:
                        Detected CSE Extension 0x03 with wrong Partition Hash at FTPR > FTPR.man!

                        Then I took ME Cleared DUMP here, replaced Serial number.
                        Everything is running but I get EFI password request.
                        So, EFI is blocked.
                        Would you like help me to cut the password request please!

                        Here is my original DUMP and good dump.
                        Thank you.
                        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

                        • AlexVG
                          Senior Member
                          • Apr 2022
                          • 138
                          • SPAIN

                          #152
                          Re: A1708 820-00840-a efi lock

                          Hi,
                          Thank you.
                          But something goes wrong.
                          Doesn't want to run the screen.
                          Consumptions is jumping from 0.01 until 0.430A

                          In ME Analyzer i have got the same problem:
                          Detected CSE Extension 0x03 with wrong Partition Hash at FTPR > FTPR.man!

                          Below is my previous dump that I read after turning on.
                          It works but asks password.
                          Attached Files
                          Last edited by AlexVG; 05-30-2023, 04:31 PM.

                          Comment

                          • AlexVG
                            Senior Member
                            • Apr 2022
                            • 138
                            • SPAIN

                            #153
                            Re: A1708 820-00840-a efi lock

                            I can suggest what was before:
                            Somebody had tried remove the EFI lock before me. But had got the same results.
                            Probably he put wrong number, or would rather didn't change it.
                            Number in the SPI was C02TK51HHF1P
                            But on the bottom cover is FVFXQEK7HV29.
                            What do you thing may be different number cause of problem?
                            Last edited by AlexVG; 05-30-2023, 05:10 PM.

                            Comment

                            • peste
                              Super Moderator
                              • Dec 2016
                              • 13451
                              • ROMANIA

                              #154
                              Re: A1708 820-00840-a efi lock

                              Originally posted by AlexVG
                              I can suggest what was before:
                              Somebody had tried remove the EFI lock before me. But had got the same results.
                              Probably he put wrong number, or would rather didn't change it.
                              Number in the SPI was C02TK51HHF1P
                              But on the bottom cover is FVFXQEK7HV29.
                              What do you thing may be different number cause of problem?
                              so... post the bios where you want to delete the password and the S/N of the laptop... how hard is that??!!
                              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

                              • AlexVG
                                Senior Member
                                • Apr 2022
                                • 138
                                • SPAIN

                                #155
                                Re: A1708 820-00840-a efi lock

                                Here is
                                SSN is correct now

                                I check it without SSD.
                                But with SSD the same
                                Attached Files
                                Last edited by AlexVG; 05-31-2023, 09:06 AM.

                                Comment

                                • peste
                                  Super Moderator
                                  • Dec 2016
                                  • 13451
                                  • ROMANIA

                                  #156
                                  Re: A1708 820-00840-a efi lock

                                  Originally posted by AlexVG
                                  Here is
                                  SSN is correct now

                                  I check it without SSD.
                                  But with SSD the same
                                  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

                                  • AlexVG
                                    Senior Member
                                    • Apr 2022
                                    • 138
                                    • SPAIN

                                    #157
                                    Re: A1708 820-00840-a efi lock

                                    Sadly,
                                    Doesn't want.
                                    Attached Files
                                    Last edited by AlexVG; 06-01-2023, 08:01 AM.

                                    Comment

                                    • SMDFlea
                                      Super Moderator
                                      • Jan 2018
                                      • 21692
                                      • UK

                                      #158
                                      Re: A1708 820-00840-a efi lock

                                      Originally posted by AlexVG
                                      Sadly,
                                      Doesn't want.
                                      https://www.badcaps.net/forum/showpo...42&postcount=4

                                      3.2. Apple

                                      3.2.2. 2012 to 2017
                                      For 2012 to 2017 machines, BIOS must be edited and reflashed to clear the password. There are 2 methods for this:

                                      Clear out the whole SVS store. There are other stuff in this store, no idea what they are for so better avoid doing this.
                                      Invalidate the CBF2CC32 NVRAM variable in that SVS store which contains the encrypted password. You just have to change one bit in its name, so like replace the C with an A or whatever. Note that strings are UCS-2 encoded, so in the hex editor it'll show up as 0x43 0x00 0x42 0x00 0x46 0x00 etc.

                                      If there is an iCloud pin, you need to perform 3x PRAM reset after removing password. If FindMyMac is still enabled, you have to reinstall macOS while being disconnected from the Internet, then reconnect after logging in and bind to a new Apple account.
                                      .
                                      All donations to badcaps are welcome, click on this link to donate. Thanks to all supporters

                                      Comment

                                      • peste
                                        Super Moderator
                                        • Dec 2016
                                        • 13451
                                        • ROMANIA

                                        #159
                                        Re: A1708 820-00840-a efi lock

                                        Originally posted by AlexVG
                                        Sadly,
                                        Doesn't want.
                                        try now..
                                        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

                                        • AlexVG
                                          Senior Member
                                          • Apr 2022
                                          • 138
                                          • SPAIN

                                          #160
                                          Re: A1708 820-00840-a efi lock

                                          Hi.
                                          I have managed to unlock it with first version and with three times PRAM reset!
                                          Very interesting!
                                          Thank you ALL!
                                          I am Happy!

                                          Comment

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