Dell Latitude 5400 Bios password

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  • volinakis
    Badcaps Legend
    • Jan 2021
    • 2734
    • N/A

    #781
    Originally posted by Haitazakaria
    This is the second bios
    try. Write only 16Mb chipset.
    Attached Files
    ----------------------------------------------------------------------------------------------------------------------------------------------------------------------
    https://www.badcaps.net/donate/
    ----------------------------------------------------------------------------------------------------------------------------------------------------------------------

    Comment

    • TAHAR AMAR
      New Member
      • Jun 2025
      • 1
      • ALGER

      #782
      BONJOUR
      DELL LATITUD 5400
      MODEL LA G891P
      SERVICE TAG 1WQ0433
      PROBLEM BIOS PASSWORD

      Comment

      • shiyab
        Badcaps Legend
        • Sep 2023
        • 1482
        • india

        #783
        Originally posted by TAHAR AMAR
        BONJOUR
        DELL LATITUD 5400
        MODEL LA G891P
        SERVICE TAG 1WQ0433
        PROBLEM BIOS PASSWORD
        post backup bios

        Comment

        • Ryeo
          New Member
          • Jun 2022
          • 1
          • Philippines

          #784
          Hello I already patch my bios I have Dell Latitude 5400 8fc8 the admin password has been removed but I couldn't install Operating System it either goes bluescreen or no bootable device. The usb bootable drive is detected and I can install the OS but after restart it goes BSOD

          Comment

          • robert1000
            New Member
            • Aug 2015
            • 4
            • Germany

            #785
            Hello guys. I bought a Latitude 5400 from a site. I turn it on and it says "this computer is protected by a password authentication system".
            Can you help me remove this password? Besides the model number, S/T, board model, which of the two flash chips should i remove and read to post here the content? There are 2 bios chips on the board. Thank you!

            Comment

            • Lover1abd
              Member
              • May 2023
              • 11
              • Canada

              #786
              DELL LATITUD 5400
              MODEL LA G891P
              SERVICE TAG C8SD433
              PROBLEM BIOS PASSWORD

              THANKSS
              Attached Files

              Comment

              • hoaca388
                Badcaps
                • Jan 2022
                • 11787
                • Socialist Republic of Vietnam

                #787
                Originally posted by Lover1abd
                DELL LATITUD 5400
                MODEL LA G891P
                SERVICE TAG C8SD433
                PROBLEM BIOS PASSWORD

                THANKSS
                3.4. Dell

                Dell laptops store the password in EC. However, some generators exist depending on the code suffix.
                See: https://beta.bios-pw.org/ .If the website is offline try: https://web.archive.org/web/*/https://bios-pw.org/
                Note: All passwords must be entered with a US QWERTY Keyboard,you can use a USB one.
                Note: The 6FF1 suffix has a bug,use your service tag with the 1F5A or BF97 suffix instead,Example: 1234ABC-BF97 .
                Note: The list of examples does not include some other suffix codes that do work,such as E7A8 .
                Note: If the BF97 suffix does not work try it with the E7A8 suffix instead.
                Note: There is no publicly available 8FC8 generator available at the moment.
                The CTRL-ENTER-ENTER keystroke after the password only applied to laptops with a suffix (xxxxxxx-8FC8 for example), until Dell also required it in some laptops using System Disable 16-Hex algorithm, on which only the Password+ENTER was needed at first and then in some models you needed the CTRL-ENTER-ENTER to properly delete the system passwords, otherwise the password would remain SET upon the automatic system reboot if just doing Password+ENTER until the proper CTRL-ENTER-ENTER keystroke was performed in certain models.
                8FC8 Patcher software: https://www.badcaps.net/forum/troubl...l-8fc8-patcher


                ---------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------
                Mọi khoản quyên góp cho badcaps đều được hoan nghênh, hãy nhấp vào liên kết này để quyên góp. Cảm ơn tất cả những người ủng hộ----------------------------------------------------------------------------------------------------------------------------------------------------------------

                Comment

                • shiyab
                  Badcaps Legend
                  • Sep 2023
                  • 1482
                  • india

                  #788
                  Originally posted by Lover1abd
                  DELL LATITUD 5400
                  MODEL LA G891P
                  SERVICE TAG C8SD433
                  PROBLEM BIOS PASSWORD

                  THANKSS
                  hi try
                  Attached Files

                  Comment

                  • Stefan Steff
                    Badcaps Veteran
                    • Mar 2024
                    • 262
                    • Romania

                    #789
                    Originally posted by Lover1abd
                    DELL LATITUD 5400
                    MODEL LA G891P
                    SERVICE TAG C8SD433
                    PROBLEM BIOS PASSWORD

                    THANKSS
                    At first boot press F2, write your Service Tag, disable Absolute if it was activated, Save and Exit.
                    Attached Files

                    Comment

                    • Lover1abd
                      Member
                      • May 2023
                      • 11
                      • Canada

                      #790
                      Originally posted by hoaca388

                      3.4. Dell

                      Dell laptops store the password in EC. However, some generators exist depending on the code suffix.
                      See: https://beta.bios-pw.org/ .If the website is offline try: https://web.archive.org/web/*/https://bios-pw.org/
                      Note: All passwords must be entered with a US QWERTY Keyboard,you can use a USB one.
                      Note: The 6FF1 suffix has a bug,use your service tag with the 1F5A or BF97 suffix instead,Example: 1234ABC-BF97 .
                      Note: The list of examples does not include some other suffix codes that do work,such as E7A8 .
                      Note: If the BF97 suffix does not work try it with the E7A8 suffix instead.
                      Note: There is no publicly available 8FC8 generator available at the moment.
                      The CTRL-ENTER-ENTER keystroke after the password only applied to laptops with a suffix (xxxxxxx-8FC8 for example), until Dell also required it in some laptops using System Disable 16-Hex algorithm, on which only the Password+ENTER was needed at first and then in some models you needed the CTRL-ENTER-ENTER to properly delete the system passwords, otherwise the password would remain SET upon the automatic system reboot if just doing Password+ENTER until the proper CTRL-ENTER-ENTER keystroke was performed in certain models.
                      8FC8 Patcher software: https://www.badcaps.net/forum/troubl...l-8fc8-patcher
                      Didn't work out

                      Thanks

                      Comment

                      • Lover1abd
                        Member
                        • May 2023
                        • 11
                        • Canada

                        #791
                        Originally posted by shiyab

                        hi try
                        After flashing no display

                        Comment

                        • Lover1abd
                          Member
                          • May 2023
                          • 11
                          • Canada

                          #792
                          Originally posted by Stefan Steff

                          At first boot press F2, write your Service Tag, disable Absolute if it was activated, Save and Exit.
                          Only power light with no display

                          Could be chip went bad ????

                          Comment

                          • Lover1abd
                            Member
                            • May 2023
                            • 11
                            • Canada

                            #793
                            Originally posted by hoaca388

                            3.4. Dell

                            Dell laptops store the password in EC. However, some generators exist depending on the code suffix.
                            See: https://beta.bios-pw.org/ .If the website is offline try: https://web.archive.org/web/*/https://bios-pw.org/
                            Note: All passwords must be entered with a US QWERTY Keyboard,you can use a USB one.
                            Note: The 6FF1 suffix has a bug,use your service tag with the 1F5A or BF97 suffix instead,Example: 1234ABC-BF97 .
                            Note: The list of examples does not include some other suffix codes that do work,such as E7A8 .
                            Note: If the BF97 suffix does not work try it with the E7A8 suffix instead.
                            Note: There is no publicly available 8FC8 generator available at the moment.
                            The CTRL-ENTER-ENTER keystroke after the password only applied to laptops with a suffix (xxxxxxx-8FC8 for example), until Dell also required it in some laptops using System Disable 16-Hex algorithm, on which only the Password+ENTER was needed at first and then in some models you needed the CTRL-ENTER-ENTER to properly delete the system passwords, otherwise the password would remain SET upon the automatic system reboot if just doing Password+ENTER until the proper CTRL-ENTER-ENTER keystroke was performed in certain models.
                            8FC8 Patcher software: https://www.badcaps.net/forum/troubl...l-8fc8-patcher
                            Actually its does works
                            With dell patcher but i had to wipe the chip first
                            Thank you so much

                            And thanks for everybody for helping me

                            Comment

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