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Dell Latitude 5420 - Faulty BIOS Image

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    Dell Latitude 5420 - Faulty BIOS Image

    Hi,

    Can someone please help to generate a 'health' BIOS image for a Latitude 5420.

    Chip is a Winbond 25R256JVEN wson8 - image dumped using RT809F with W25Q256FV settings as this chip isn't listed in the software (works apparently, have tried other recommended model settings, all with the same results).

    Service Tag noted in file name.

    Thanks
    Attached Files

    #2
    Re: Dell Latitude 5420 - Faulty BIOS Image

    Try
    Attached Files

    Comment


      #3
      Re: Dell Latitude 5420 - Faulty BIOS Image

      try
      Attached Files

      Comment


        #4
        Re: Dell Latitude 5420 - Faulty BIOS Image

        Thanks Hoaca388 and Lapfix.

        I've tried both BIN file images but still the laptop isn't working.

        Hoaca388, your image makes the laptop turn on, but with a black screen (no power to the screen) and the keyboard backlight illuminates. The CPU gets a bit warm and then after around 10-15 secs the laptop turns off. This repeats itself continously.

        Lapfix, your simply makes the LED status light turn amber then gradually fades, but there's no activity on the laptop other than this.

        Any help would be appreciated.

        Thanks

        Comment


          #5
          Re: Dell Latitude 5420 - Faulty BIOS Image

          Originally posted by CapThatBrass View Post
          Thanks Hoaca388 and Lapfix.

          I've tried both BIN file images but still the laptop isn't working.

          Hoaca388, your image makes the laptop turn on, but with a black screen (no power to the screen) and the keyboard backlight illuminates. The CPU gets a bit warm and then after around 10-15 secs the laptop turns off. This repeats itself continously.

          Lapfix, your simply makes the LED status light turn amber then gradually fades, but there's no activity on the laptop other than this.

          Any help would be appreciated.

          Thanks
          Try again
          Attached Files

          Comment


            #6
            Re: Dell Latitude 5420 - Faulty BIOS Image

            Absolute genius! Thank you, worked first time.

            Comment


              #7
              Re: Dell Latitude 5420 - Faulty BIOS Image

              Originally posted by CapThatBrass View Post
              Absolute genius! Thank you, worked first time.
              Try this file again
              Attached Files

              Comment


                #8
                Re: Dell Latitude 5420 - Faulty BIOS Image

                Originally posted by CapThatBrass View Post
                Absolute genius! Thank you, worked first time.
                you are use rt809f to read and write chip?

                Comment


                  #9
                  Re: Dell Latitude 5420 - Faulty BIOS Image

                  Hi mrwab, yes I'm using RT809F to read/write to the chip

                  Comment


                    #10
                    Dell latitude 5420 corrupted bios

                    Hello everyone
                    i have received dell latitude 5420 11th (GDF40 LA-K491P REV 2.0) , coming from other shop .the original issue was 8FC8 lock .
                    unfortunately the technician who worked on have not read the old dump correctly , so the saved file could not be opened on FIT and gives error message .
                    now the laptop dont give display with this file . and with many other dumps downloaded it gives display but hung on dell logo with 6 white 3 orange light on power led .
                    i will upload both 32mb corrupted , 32mb hung on dell and 16mb readed correctly .
                    can anyone help me to repair this case .
                    thanks
                    Attached Files

                    Comment


                      #11
                      Re: Dell latitude 5420 corrupted bios

                      Originally posted by haithem View Post
                      Hello everyone
                      i have received dell latitude 5420 11th (GDF40 LA-K491P REV 2.0) , coming from other shop .the original issue was 8FC8 lock .
                      unfortunately the technician who worked on have not read the old dump correctly , so the saved file could not be opened on FIT and gives error message .
                      now the laptop dont give display with this file . and with many other dumps downloaded it gives display but hung on dell logo with 6 white 3 orange light on power led .
                      i will upload both 32mb corrupted , 32mb hung on dell and 16mb readed correctly .
                      can anyone help me to repair this case .
                      thanks
                      Latitude 5420
                      Attached Files
                      Last edited by hoaca388; 01-03-2023, 05:57 AM.

                      Comment


                        #12
                        Re: Dell Latitude 5420 - Faulty BIOS Image

                        you have repaired the corrupted one , or build a new bin file ?

                        Comment


                          #13
                          Re: Dell Latitude 5420 - Faulty BIOS Image

                          Originally posted by haithem View Post
                          you have repaired the corrupted one , or build a new bin file ?
                          Repair and unlock from corupt file.

                          Comment


                            #14
                            Re: Dell Latitude 5420 - Faulty BIOS Image

                            it does not work . laptop turn on , light on screen , no display , no dell logo
                            i think there is a problem with 16mb dump

                            Comment


                              #15
                              Re: Dell Latitude 5420 - Faulty BIOS Image

                              dell are saying that error message : 6 white 3 orange means :
                              flash corruption detected by SBIOS .
                              i dont know what means SBIOS , is it the secondary bios 16mb ?
                              we know that MBIOS means main bios 32mb
                              i think i must try to dump both bios

                              Comment


                                #16
                                Re: Dell Latitude 5420 - Faulty BIOS Image

                                Originally posted by haithem View Post
                                dell are saying that error message : 6 white 3 orange means :
                                flash corruption detected by SBIOS .
                                i dont know what means SBIOS , is it the secondary bios 16mb ?
                                we know that MBIOS means main bios 32mb
                                i think i must try to dump both bios
                                No, this is my fault , need repair EC region in bios file but i am working now, i will do that tomorrow.

                                Comment


                                  #17
                                  Re: Dell Latitude 5420 - Faulty BIOS Image

                                  ook , thank you very much , im waiting

                                  Comment


                                    #18
                                    Re: Dell Latitude 5420 - Faulty BIOS Image

                                    Originally posted by haithem View Post
                                    ook , thank you very much , im waiting
                                    Try this file and feedback. You should be able to modify the service tag.
                                    Attached Files

                                    Comment


                                      #19
                                      Re: Dell Latitude 5420 - Faulty BIOS Image

                                      does not work also , same result

                                      Comment


                                        #20
                                        Re: Dell Latitude 5420 - Faulty BIOS Image

                                        Originally posted by haithem View Post
                                        does not work also , same result
                                        Latitude 5420
                                        Service Tag: 7ZHG1F3
                                        Attached Files

                                        Comment

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