Dell latitude 7490 bios

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  • bouny56
    Senior Member
    • Jan 2023
    • 63
    • france

    #141
    Hello

    I have a 7490 with black screen and no caps lock

    Mb : LA-F321p rev 2
    sn : F3RLNV2

    can someone help me please?
    Attached Files

    Comment

    • hoaca388
      Badcaps
      • Jan 2022
      • 11150
      • Viet Nam

      #142
      Originally posted by bouny56
      Hello

      I have a 7490 with black screen and no caps lock

      Mb : LA-F321p rev 2
      sn : F3RLNV2

      can someone help me please?
      Latitude 7490
      Service Tag: F3RLNV2​
      Attached Files


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      Comment

      • bouny56
        Senior Member
        • Jan 2023
        • 63
        • france

        #143
        Originally posted by hoaca388

        Latitude 7490
        Service Tag: F3RLNV2
        Thx for your answer , i will try
        Originally posted by hoaca388

        Latitude 7490
        Service Tag: F3RLNV2
        Ok sorry , shorted Cpu

        Thanks again for your help

        Comment

        • CactusAcolyte
          New Member
          • Dec 2022
          • 3
          • Canada

          #144
          Dell Latitude 7490
          S/N: JNJCVN2
          MB:
          DAZ40 LA-F322P
          Rev:1.0( A00 )

          SPI Chip is probably Winbond W25Q128JV ?

          Computrace (DeviceFreeze) prevents booting.
          Would try to clean it myself but this is my first time trying this and I have no idea about the DMI address offsets or whatnot on this chip.. 😔

          Thank you in advance!
          Attached Files

          Comment

          • HyltonAJ
            Member
            • Mar 2023
            • 16
            • United States

            #145
            Hey guys i got some passwords but they didn't work is there anyone here that could help me getting a working code?


            Model: 7490

            System number: 4HJ6ZW2-E7A8


            Passwords: Z6Wqk3Rs920[NXP2 I1eRGsWs33DerGbP

            Comment

            • HyltonAJ
              Member
              • Mar 2023
              • 16
              • United States

              #146
              Can i get some help removing the bios password please
              Attached Files

              Comment

              • rex98
                Badcaps Legend
                • Feb 2023
                • 1235
                • Mandaue CEBU, Philippines

                #147
                Originally posted by HyltonAJ
                Can i get some help removing the bios password please
                does the board have other bios chip?

                Comment

                • HyltonAJ
                  Member
                  • Mar 2023
                  • 16
                  • United States

                  #148
                  Originally posted by rex98

                  does the board have other bios chip?
                  I'm not sure. where would another chip be located?

                  Comment

                  • HyltonAJ
                    Member
                    • Mar 2023
                    • 16
                    • United States

                    #149
                    Originally posted by rex98

                    does the board have other bios chip?

                    The actual number on the chip is 25B127DSIG but the CH341 mini software detect it as GD25Q127C

                    Comment

                    • qayyum786
                      Badcaps Legend
                      • Aug 2018
                      • 1933
                      • INDIA

                      #150
                      Originally posted by HyltonAJ


                      The actual number on the chip is 25B127DSIG but the CH341 mini software detect it as GD25Q127C
                      no issue just red and verify your dump

                      Comment

                      • HyltonAJ
                        Member
                        • Mar 2023
                        • 16
                        • United States

                        #151
                        Originally posted by qayyum786

                        no issue just red and verify your dump
                        It has an admin password on the bios that is the issue

                        Comment

                        • qayyum786
                          Badcaps Legend
                          • Aug 2018
                          • 1933
                          • INDIA

                          #152
                          Originally posted by HyltonAJ

                          It has an admin password on the bios that is the issue
                          if you are not able to select manually or find that chip in software chip list than no issue if your programmer auto detect it as a GD25Q127C just select it and read bios send here some one will fix it your issue
                          Last edited by qayyum786; 04-29-2024, 10:49 PM.

                          Comment

                          • HyltonAJ
                            Member
                            • Mar 2023
                            • 16
                            • United States

                            #153
                            Originally posted by qayyum786

                            if you are not able to select manually or find that chip in software than no issue if your programmer auto detect it as a GD25Q127C just select it and read bios send here some one will fix it your issue
                            I did select the GD25Q127C option and posted it earlier. ill post it again below
                            Attached Files

                            Comment

                            • qayyum786
                              Badcaps Legend
                              • Aug 2018
                              • 1933
                              • INDIA

                              #154
                              Originally posted by HyltonAJ

                              I did select the GD25Q127C option and posted it earlier. ill post it again below
                              try
                              Attached Files

                              Comment

                              • HyltonAJ
                                Member
                                • Mar 2023
                                • 16
                                • United States

                                #155
                                Originally posted by qayyum786

                                try
                                Ok i will
                                Originally posted by qayyum786

                                try
                                Thank you very much it worked!!!

                                Comment

                                • CactusAcolyte
                                  New Member
                                  • Dec 2022
                                  • 3
                                  • Canada

                                  #156
                                  Originally posted by CactusAcolyte
                                  Dell Latitude 7490
                                  S/N: JNJCVN2
                                  MB:
                                  DAZ40 LA-F322P
                                  Rev:1.0( A00 )

                                  SPI Chip is probably Winbond W25Q128JV ?

                                  Computrace (DeviceFreeze) prevents booting.
                                  Would try to clean it myself but this is my first time trying this and I have no idea about the DMI address offsets or whatnot on this chip.. 😔

                                  Thank you in advance!
                                  can i have help please

                                  Comment

                                  • qayyum786
                                    Badcaps Legend
                                    • Aug 2018
                                    • 1933
                                    • INDIA

                                    #157
                                    Originally posted by CactusAcolyte

                                    can i have help please
                                    replace bios region and add service tag manually from bios setup maintenance tab

                                    Comment

                                    • CactusAcolyte
                                      New Member
                                      • Dec 2022
                                      • 3
                                      • Canada

                                      #158
                                      Originally posted by qayyum786

                                      replace bios region and add service tag manually from bios setup maintenance tab
                                      Replace it with any of the previously posted files?

                                      Comment

                                      • qayyum786
                                        Badcaps Legend
                                        • Aug 2018
                                        • 1933
                                        • INDIA

                                        #159
                                        Originally posted by CactusAcolyte

                                        Replace it with any of the previously posted files?
                                        try
                                        Attached Files

                                        Comment

                                        • refreshcomputers
                                          New Member
                                          • Jan 2018
                                          • 8
                                          • Kosovo

                                          #160
                                          DAZ40 LA-F321P REV 3,0 A02 22,08,2018

                                          Comment

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