Dell 8FC8 Patcher

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  • Firechixh
    New Member
    • Aug 2025
    • 2
    • United Kingdom

    #101
    rex98 please could you re-upload the source code and video tutorial since, for some reason, when clicked it says "invalid file specified".

    Comment

    • f@brice
      Senior Member
      • Nov 2019
      • 73
      • France

      #102
      https://www.badcaps.net/forum/troubl...00#post3683800

      Comment

      • Firechixh
        New Member
        • Aug 2025
        • 2
        • United Kingdom

        #103
        For a dell latitude 5420 what is the best way to r/w to the BIOS chip since it does not seem like a traditional clip can do the job. Should I sand down the ends of the clip so the metal can touch or is there some other method (preferably without unsoldering) that can allow me to r/w to the chip. I have a CH341A programmer and clip but the BIOS chip (windbond 25R256JVEN) seems to be surface installed.

        Comment

        • peste
          Super Moderator
          • Dec 2016
          • 13072
          • ROMANIA

          #104
          Originally posted by Firechixh
          For a dell latitude 5420 what is the best way to r/w to the BIOS chip since it does not seem like a traditional clip can do the job. Should I sand down the ends of the clip so the metal can touch or is there some other method (preferably without unsoldering) that can allow me to r/w to the chip. I have a CH341A programmer and clip but the BIOS chip (windbond 25R256JVEN) seems to be surface installed.
          The bios chip must be unsoldered from the board before writing or reading..
          do not use the clip, you may have errors..if you do not have anything to unsolder it with,
          solder wires between the programmer and the bios chip..

          here is a video for example..https://www.youtube.com/watch?v=DWWi...nnel=ThisIsHow

          You can also use an adapter for these chips.
          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

          • vamota
            New Member
            • Sep 2021
            • 9
            • UK

            #105
            Many thanks for this great little tool : thanks to this , I bought my first ever T48 EEPROM programmer, and managed to re-program my Dell Latitude 7400 ( in-circuit , as a bonus! ) and get it into Manufacturing mode to remove the system password. Very pleased with myself .. thanks again

            Comment

            • Bilal@pc
              Member
              • Jun 2021
              • 40
              • Algeria

              #106
              THINKS FOR ALL

              Comment

              • spacez
                Senior Member
                • Nov 2023
                • 60
                • FR

                #107
                PLEASE UNLOCK MY XPS 15 9520
                ST : 8LGSKR3
                Attached Files

                Comment

                • f@brice
                  Senior Member
                  • Nov 2019
                  • 73
                  • France

                  #108
                  Try this and report result, please
                  Attached Files

                  Comment

                  • SMDFlea
                    Super Moderator
                    • Jan 2018
                    • 21324
                    • UK

                    #109
                    Originally posted by spacez
                    PLEASE UNLOCK MY XPS 15 9520
                    ST : 8LGSKR3
                    Didn`t you try using the patcher yourself ? ,was there some error using it ?
                    All donations to badcaps are welcome, click on this link to donate. Thanks to all supporters

                    Comment

                    • spacez
                      Senior Member
                      • Nov 2023
                      • 60
                      • FR

                      #110
                      Originally posted by f@brice
                      Try this and report result, please
                      thanks working

                      Comment

                      • spacez
                        Senior Member
                        • Nov 2023
                        • 60
                        • FR

                        #111
                        Originally posted by SMDFlea

                        Didn`t you try using the patcher yourself ? ,was there some error using it ?
                        tryed old method and patcher . not woring

                        Comment

                        Related Topics

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                        • SMDFlea
                          Dell 8FC8 Bios Password Patcher
                          by SMDFlea
                          • ************************************************** ***********************************************
                            DISCLAIMER: badcaps.net and its members do no support unlocking stolen or company-owned devices.
                            The unlock scripts given here are for personal use only, ie. you accidentally set a password on
                            your own machine,you forgot the password you set a long time ago or you mistyped the password
                            when setting it and cannot get in again.

                            ************************************************** ***********************************************
                            DISCLAIMER: THE SCRIPTS
                          ...
                          11-03-2023, 06:02 AM
                        • Bowline
                          Dell E6400 PT434 type Battery Charging Stuck at 1%. Battery Pinouts?
                          by Bowline
                          My question pertains to understanding the control circuity inside a Dell PT434 type battery used in Dell E6400, E6410 and other Dell notebooks?

                          Does anyone have a circuit diagram for the inside of a Dell PT434 battery and/or a description of how the control lines work to control this battery?

                          My reason for asking is I have a battery which I cannot get to charge beyond 1% in a Dell E6410 or E6400.
                          The LED bar graph charge indicator on the battery shows one LED lighted when the info button is pressed.
                          I have tried multiple different Dell power adapters. My Dell...
                          06-11-2025, 10:13 AM
                        • al_b0sni
                          Dell Optiplex 5000 8fc8 with chip W25Q128JVSN
                          by al_b0sni
                          Hey, i bought a Dell Optiplex 5000 8fc8 with chip W25Q128JVSN.
                          I also used the CH341A programmer but my usb cable (i didnt attach it directly into the pc, i used a cable between) was corrupted. So i made a dump. Then i removed the password but unfortunately the dump had a loose contact so it was corrupted. And i've also overwrited the chip and now i dont have any dump anymore.

                          Can someone help me? I am stuck since hours and i cannot find any bin file anywhere.
                          I tried to extract the EXE for BIOS installation from dell and also the rcv file but i didn't manage to do that....
                          06-18-2025, 03:42 PM
                        • dr_crx
                          Dell 7740 Bios locked J3JSD43-8FC8
                          by dr_crx
                          Hello i need help please
                          i have DELL 7740 ST: J3JSD43-8FC8
                          i tried to read bios bit i think it is wrong because the size of the file is around 1mb
                          anyone can help to show its location on motherboard please.
                          i attached the results file the IC i read is : winbond 25q80dvsig
                          i don't know if its the needed bios or another bios on the motherboard.
                          thank you in advanced for your help...
                          07-11-2025, 12:22 AM
                        • zenius
                          [REQUEST] Dell G3 3579 BIOS Password & AMI Protected Range/BIOS Guard Unlock
                          by zenius
                          Hello, I have an old Dell G3 3579 (ST: 2WQ7LP2-8FC8) with a newer 8FC8 BIOS password. I have successfully attached to the flash chip (W25Q128JVSQ) on the motherboard with a CH341A programmer and made several modifications using Intel FIT (e.g., allow software SPI write) without bricking. I was also able to boot to a modified GRUB shell where I attempted to edit many BIOS security related options like BIOS Guard/Lock, Flash Signature Override, ME FW Image Re-Flash, etc.

                          Unfortunately, some of these modifications like to Intel BIOS Guard failed because it is fused into the PCH. Also,...
                          12-08-2024, 06:13 AM
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