Bios unlock for DELL LATITUDE 7420

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  • LBTT1121
    Badcaps Veteran
    • Nov 2024
    • 603
    • Viแป‡t Nam

    #461
    Originally posted by karlzon16
    Hi! need to remove BIOS password Latitude 7420

    ST:56WH4J3
    try and feedback
    Attached Files

    Comment

    • karlzon16
      Member
      • Jul 2025
      • 10
      • Philippines

      #462
      Originally posted by LBTT1121

      try and feedback
      Hi, power not responding, just amber light

      Comment

      • karlzon16
        Member
        • Jul 2025
        • 10
        • Philippines

        #463
        Originally posted by LBTT1121

        try and feedback
        It is working! its just my bad soldering job. tried again and now working. Thank you!

        Comment

        • karlzon16
          Member
          • Jul 2025
          • 10
          • Philippines

          #464
          Hi! I have another one needs BIOS password Latitude 7420

          ST: 6PPC6G3
          Attached Files

          Comment

          • lapfix
            Badcaps Legend
            • Mar 2020
            • 2742
            • my workshop

            #465
            Originally posted by karlzon16
            Hi, need BIOS password removal Dell Latitude 3440

            ST-GRTWMX3
            1st boot, press F2, write service tag, disable Absolute, save, restart.
            2nd boot press Alt+F to exit manufacturing mode.
            Good luck.
            Attached Files

            Comment

            • karlzon16
              Member
              • Jul 2025
              • 10
              • Philippines

              #466
              Originally posted by lapfix

              1st boot, press F2, write service tag, disable Absolute, save, restart.
              2nd boot press Alt+F to exit manufacturing mode.
              Good luck.
              It worked! Thank you so much!

              Comment

              • ammaoui
                New Member
                • Mar 2015
                • 1
                • Morocco

                #467
                Hi! need to remove BIOS password Latitude 7420

                ST:76WW8C3

                Thanks in advance
                Attached Files

                Comment

                • hoaca388
                  Badcaps
                  • Jan 2022
                  • 11891
                  • Socialist Republic of Vietnam

                  #468
                  Originally posted by ammaoui
                  Hi! need to remove BIOS password Latitude 7420

                  ST:76WW8C3

                  Thanks in advance
                  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


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                  Comment

                  • dhoengpreth
                    New Member
                    • Aug 2025
                    • 2
                    • Indonesia

                    #469
                    anyone please remove bios password for dell latitude 7420, thank you
                    Attached Files

                    Comment

                    • peste
                      Super Moderator
                      • Dec 2016
                      • 12959
                      • ROMANIA

                      #470
                      Originally posted by dhoengpreth
                      anyone please remove bios password for dell latitude 7420, thank you
                      post S/T, full name and model, motherboard model, ,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

                      • Godwood
                        New Member
                        • Aug 2025
                        • 7
                        • Germany

                        #471
                        Is there any way to reset my BIOS Chip? Its a Winbond 25Q80DV SIG 2128.
                        I donยดt have a clean bios bin. the attached bin is my backup.

                        If i erase the chip and boot the Notebook its Password protected again.

                        Can someone tell me whats the Problem?

                        Attached Files

                        Comment


                        • peste
                          peste commented
                          Editing a comment
                          post merged..next time look for a thread with the name and model, motherboard model of the laptop, and post there, if you can't find it, then make a new thread..
                      • peste
                        Super Moderator
                        • Dec 2016
                        • 12959
                        • ROMANIA

                        #472
                        Originally posted by Godwood
                        Is there any way to reset my BIOS Chip? Its a Winbond 25Q80DV SIG 2128.
                        I donยดt have a clean bios bin. the attached bin is my backup.

                        If i erase the chip and boot the Notebook its Password protected again.

                        Can someone tell me whats the Problem?
                        post S/T, full name and model, motherboard model, 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

                        • dhoengpreth
                          New Member
                          • Aug 2025
                          • 2
                          • Indonesia

                          #473
                          Originally posted by peste

                          post S/T, full name and model, motherboard model, ,etc.
                          Dell Latitude 7420
                          ST : FSHC7D3

                          Comment

                          • Godwood
                            New Member
                            • Aug 2025
                            • 7
                            • Germany

                            #474
                            Originally posted by peste
                            post S/T, full name and model, motherboard model, etc.
                            S/T: 45D17G3, Dell Latitude 7420, MFGYR:2021, GDC31 LA-K371P, PWB PN: D955X,

                            I hope this fits all needs?

                            Comment

                            • LBTT1121
                              Badcaps Veteran
                              • Nov 2024
                              • 603
                              • Viแป‡t Nam

                              #475
                              Originally posted by Godwood
                              Is there any way to reset my BIOS Chip? Its a Winbond 25Q80DV SIG 2128.
                              I donยดt have a clean bios bin. the attached bin is my backup.

                              If i erase the chip and boot the Notebook its Password protected again.

                              Can someone tell me whats the Problem?
                              bios dell 7420 ---SIZE 32Mb ---25Q256-GD256---XM256.. NOT 1 Mb

                              Comment

                              • Godwood
                                New Member
                                • Aug 2025
                                • 7
                                • Germany

                                #476
                                Originally posted by LBTT1121

                                bios dell 7420 ---SIZE 32Mb ---25Q256-GD256---XM256.. NOT 1 Mb
                                What am i doing wrong? I tried AS Programmer and Neo Programmer, everytime i get 1 Mb bin files.

                                Comment

                                • LBTT1121
                                  Badcaps Veteran
                                  • Nov 2024
                                  • 603
                                  • Viแป‡t Nam

                                  #477
                                  Originally posted by Godwood

                                  What am i doing wrong? I tried AS Programmer and Neo Programmer, everytime i get 1 Mb bin files.
                                  bios 32Mb

                                  Click image for larger version

Name:	image_390890.png
Views:	0
Size:	2.24 MB
ID:	3712059

                                  Comment

                                  • Godwood
                                    New Member
                                    • Aug 2025
                                    • 7
                                    • Germany

                                    #478
                                    Originally posted by LBTT1121

                                    bios 32Mb

                                    Click image for larger version  Name:	image_390890.png Views:	0 Size:	2.24 MB ID:	3712059
                                    O.k. Thx, Then I have to desolder the chip. My clamp doesn't fit on it.

                                    Comment

                                    • Godwood
                                      New Member
                                      • Aug 2025
                                      • 7
                                      • Germany

                                      #479
                                      Originally posted by Godwood

                                      O.k. Thx, Then I have to desolder the chip. My clamp doesn't fit on it.
                                      Here is the real Bios File.
                                      Attached Files

                                      Comment

                                      • LBTT1121
                                        Badcaps Veteran
                                        • Nov 2024
                                        • 603
                                        • Viแป‡t Nam

                                        #480
                                        Originally posted by Godwood

                                        Here is the real Bios File.
                                        try and feedback
                                        Attached Files

                                        Comment

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