Dell Latitude 7400 Bios Password

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  • zohaib hassan khan
    New Member
    • Feb 2017
    • 1
    • pakistan

    #501
    plz help dell latitude 7400 clean me this file

    Laptop wont boot and stuck on Dell logo Screen and restart laptop
    Attached Files

    Comment

  • waqarali
    Member
    • Nov 2023
    • 49
    • United Arab emirates

    #502
    Dell latitude 7400
    ST;; 1GZ62R2
    MB;; LA-G871P
    Problem;; Remove password
    Attached Files

    Comment

    • Markus1741
      Badcaps Veteran
      • Sep 2020
      • 842
      • N/A

      #503
      Originally posted by waqarali
      Dell latitude 7400
      ST;; 1GZ62R2
      MB;; LA-G871P
      Problem;; Remove password
      unlocked ....

      Important: Input the Service Tag, save the settings, and then restart and press Alt+F to exit manufacturing mode.
      Attached Files

      Comment

      • Pigo
        New Member
        • Nov 2020
        • 8
        • United States

        #504
        Hello everybody; I have a question, the chip: "winbond 25q80dvsig" is the BIOS chip for this computer, right? If it is I can just dump the BIOS unto a file and upload it here for assistance to remove the password, right?

        Comment

      • Pigo
        New Member
        • Nov 2020
        • 8
        • United States

        #505
        Originally posted by amjfrankenstein
        Re: Dell Latitude 7400 Bios Password 8FC8 Suffix

        [ATTACH]237269[/ATTACH]
        How can I build this cable or buy it?

        Comment

        • markorep
          New Member
          • Jan 2024
          • 1
          • Belgium

          #506
          Dell latitude 7400
          ST;; 68QPXY2
          MB;; LA-G871P
          Problem;; Remove password​
          Attached Files

          Comment

          • hoaca388
            Badcaps Legend
            • Jan 2022
            • 11135
            • Viet Nam

            #507
            Originally posted by markorep
            Dell latitude 7400
            ST;; 68QPXY2
            MB;; LA-G871P
            Problem;; Remove password​
            AAA
            Attached Files


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            Comment

            • jimbalaa
              New Member
              • Jul 2021
              • 3
              • UK

              #508
              Hello, if you could be so kind and unlock this please?
              Dell latitude 7400
              ST;; 9Q2LQ13
              Problem;; Remove password
              Thank you!​
              Attached Files

              Comment

              • jimbalaa
                New Member
                • Jul 2021
                • 3
                • UK

                #509
                Originally posted by Pigo
                Hello everybody; I have a question, the chip: "winbond 25q80dvsig" is the BIOS chip for this computer, right? If it is I can just dump the BIOS unto a file and upload it here for assistance to remove the password, right?
                Mine is the same.

                Comment

                • volinakis
                  Badcaps Legend
                  • Jan 2021
                  • 2610
                  • N/A

                  #510
                  Originally posted by jimbalaa

                  Mine is the same.
                  on the other side ... Click image for larger version

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                  Comment

                  • jimbalaa
                    New Member
                    • Jul 2021
                    • 3
                    • UK

                    #511
                    Originally posted by volinakis

                    on the other side ... Click image for larger version

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ID:	3216805 Click image for larger version

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                    thats a pain. thank you i will take it out and extract it

                    Comment

                    • blaster1088
                      New Member
                      • Feb 2024
                      • 1
                      • UKR

                      #512
                      Hi guys
                      I have latitude 7400 with a bios password

                      Can I upload the BIOS only through the programmer? Or can I do it through Windows?
                      please don't laugh loudly)
                      Last edited by blaster1088; 02-21-2024, 04:01 PM.

                      Comment


                      • Vesko356
                        Vesko356 commented
                        Editing a comment
                        You must use a programmer to read the bios chip. No other easy/lazy way.
                    • Italyfan
                      Member
                      • Jun 2018
                      • 27
                      • viet nam

                      #513
                      Hello, if you could be so kind and unlock this please?
                      Dell latitude 7400
                      ST;; 9WV12R2
                      Problem;; Remove password
                      Thank you!​
                      Attached Files

                      Comment

                      • rex98
                        Badcaps Legend
                        • Feb 2023
                        • 1234
                        • Mandaue CEBU, Philippines

                        #514
                        Originally posted by Italyfan
                        Hello, if you could be so kind and unlock this please?
                        Dell latitude 7400
                        ST;; 9WV12R2
                        Problem;; Remove password
                        Thank you!​
                        this is not the main bios find the 32MB chip .

                        Comment

                        • Italyfan
                          Member
                          • Jun 2018
                          • 27
                          • viet nam

                          #515
                          Originally posted by rex98

                          this is not the main bios find the 32MB chip .
                          sorry i can not find the 32mb chip on the motherboard. My motherboard code is EDC40 LA-G871P rev 1.0
                          This is the 8mb chip - UC5, file above is 16mb - UC6
                          Attached Files

                          Comment

                          • rex98
                            Badcaps Legend
                            • Feb 2023
                            • 1234
                            • Mandaue CEBU, Philippines

                            #516
                            Originally posted by Italyfan

                            sorry i can not find the 32mb chip on the motherboard. My motherboard code is EDC40 LA-G871P rev 1.0
                            This is the 8mb chip - UC5, file above is 16mb - UC6
                            this is still not the main bios. refer to this picture. read post #510!!
                            https://www.badcaps.net/forum/troubl...04#post3216804

                            Comment

                            • Italyfan
                              Member
                              • Jun 2018
                              • 27
                              • viet nam

                              #517
                              Originally posted by rex98

                              this is still not the main bios. refer to this picture. read post #510!!
                              https://www.badcaps.net/forum/troubl...04#post3216804
                              Yes that is exactly the file I read from uc5, I don't understand why on this motherboard it is only 8mb 😂
                              Click image for larger version

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                              Attached Files

                              Comment

                              • rex98
                                Badcaps Legend
                                • Feb 2023
                                • 1234
                                • Mandaue CEBU, Philippines

                                #518
                                Originally posted by Italyfan

                                Yes that is exactly the file I read from uc5, I don't understand why on this motherboard it is only 8mb 😂
                                Click image for larger version

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Views:	479
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                                TRY.
                                1st boot, press F2, write service tag, disable Absolute, save (Apply changes), restart. 2nd boot press Alt+F to exit manufacturing mode
                                Attached Files

                                Comment

                                • Italyfan
                                  Member
                                  • Jun 2018
                                  • 27
                                  • viet nam

                                  #519
                                  Originally posted by rex98

                                  TRY.
                                  1st boot, press F2, write service tag, disable Absolute, save (Apply changes), restart. 2nd boot press Alt+F to exit manufacturing mode
                                  It works. Many thanks for your help 😀

                                  Comment

                                  • Lukian86
                                    New Member
                                    • Oct 2023
                                    • 7
                                    • Romania

                                    #520
                                    i have a latitude 7400
                                    i need to unlock bios
                                    i tried all tools but not solved
                                    i extract bin dump
                                    Attached Files

                                    Comment

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