HP EliteBook 640 G9 Bios password

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  • tktrom
    Senior Member
    • Jul 2022
    • 69
    • Bolivia

    #401
    Good evening, I have a password on this machine. Could someone help me unlock it? Thanks.
    Hp eliteBook 640 G9
    s/n 5CD2496YK6
    Mainboard DA0X8SMB8H2
    Attached Files

    Comment

    • Tech@Lap
      Member
      • Aug 2022
      • 13
      • Samoa américaines

      #402
      Originally posted by tktrom
      Good evening, I have a password on this machine. Could someone help me unlock it? Thanks.
      Hp eliteBook 640 G9
      s/n 5CD2496YK6
      Mainboard DA0X8SMB8H2
      Try this
      Attached Files

      Comment

      • dahnking
        Badcaps Veteran
        • Apr 2018
        • 256
        • kenya

        #403
        Help me unlock this one please
        Hp eliteBook 640 G9
        s/n 5CD3411MT7
        Mainboard DA0X8SMB8H2​
        Attached Files

        Comment

        • Bios Cracker
          Badcaps Veteran
          • Oct 2024
          • 306
          • India

          #404
          Originally posted by dahnking
          Help me unlock this one please
          Hp eliteBook 640 G9
          s/n 5CD3411MT7
          Mainboard DA0X8SMB8H2​
          Try and Update.
          Attached Files

          Comment

          • dahnking
            Badcaps Veteran
            • Apr 2018
            • 256
            • kenya

            #405
            Originally posted by Bios Cracker

            Try and Update.
            Still locked

            Comment

            • lapfix
              Badcaps Legend
              • Mar 2020
              • 2565
              • my workshop

              #406
              Originally posted by dahnking
              Help me unlock this one please
              Hp eliteBook 640 G9
              s/n 5CD3411MT7
              Mainboard DA0X8SMB8H2
              YOU MUST follow these steps :
              1) First boot will delay a few minutes
              2) IMPORTANT: Go to BIOS Setup ( F10 ) and reset to Factory Default (first main page tab)
              3) Restart and enter BIOS
              4) 2nd boot restore security settings to defaults​
              Attached Files

              Comment

              • dahnking
                Badcaps Veteran
                • Apr 2018
                • 256
                • kenya

                #407
                Originally posted by lapfix

                YOU MUST follow these steps :
                1) First boot will delay a few minutes
                2) IMPORTANT: Go to BIOS Setup ( F10 ) and reset to Factory Default (first main page tab)
                3) Restart and enter BIOS
                4) 2nd boot restore security settings to defaults
                Still locked, first screen is giving me this....anyhelp?
                Attached Files

                Comment

                • lapfix
                  Badcaps Legend
                  • Mar 2020
                  • 2565
                  • my workshop

                  #408
                  Originally posted by dahnking

                  Still locked, first screen is giving me this....anyhelp?
                  Now use rex98 Bios at post number #355.
                  Good luck

                  Comment

                  • dahnking
                    Badcaps Veteran
                    • Apr 2018
                    • 256
                    • kenya

                    #409
                    Originally posted by lapfix

                    Now use rex98 Bios at post number #355.
                    Good luck
                    No LUCK from post #355(rex98)

                    Comment

                    • lapfix
                      Badcaps Legend
                      • Mar 2020
                      • 2565
                      • my workshop

                      #410
                      Originally posted by dahnking

                      No LUCK from post #355(rex98)
                      Did you flash both main and Ec with rex solution !!
                      Did you follow his steps!!

                      Comment

                      • dahnking
                        Badcaps Veteran
                        • Apr 2018
                        • 256
                        • kenya

                        #411
                        Originally posted by lapfix

                        Did you flash both main and Ec with rex solution !!
                        Did you follow his steps!!
                        Yes, flashed both, its even not displaying

                        Comment

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

                          #412
                          Originally posted by dahnking

                          Yes, flashed both, its even not displaying
                          i'm sorry it didn't work coz i haven't noticed its a two bios version for this model. its U75 and U86.
                          the post number # 355 is U86
                          this is the new one for U75
                          HP EliteBook 640 14 inch G9 U75
                          The patch won't work if the bios version is latest. use this bin flash both it won't work if you only flash the main you should Flash Both.
                          first boot press f10 apply factory defaults and restart, 2nd boot reset security settings to defaults and exit.
                          use BCU and put your original DMI.​
                          Attached Files

                          Comment

                          • lapfix
                            Badcaps Legend
                            • Mar 2020
                            • 2565
                            • my workshop

                            #413
                            Originally posted by rex98

                            i'm sorry it didn't work coz i haven't noticed its a two bios version for this model. its U75 and U86.
                            the post number # 355 is U86
                            this is the new one for U75
                            HP EliteBook 640 14 inch G9 U75
                            The patch won't work if the bios version is latest. use this bin flash both it won't work if you only flash the main you should Flash Both.
                            first boot press f10 apply factory defaults and restart, 2nd boot reset security settings to defaults and exit.
                            use BCU and put your original DMI.​
                            Thank you man for your help
                            both post are FOR U75..!
                            U86 is not mention at anyone !

                            Comment

                            • abuge
                              Senior Member
                              • Oct 2022
                              • 69
                              • USA

                              #414
                              rex98 sir i have try your post 355 no luck can you plz unlock my two bios file
                              Attached Files

                              Comment

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

                                #415
                                Originally posted by abuge
                                rex98 sir i have try your post 355 no luck can you plz unlock my two bios file
                                opps i'm sorry post # 355 should be deleted the EC file i sent is wrong i haven't noticed. thats why it didn't work. i'll create a new one now.
                                Last edited by rex98; 05-25-2025, 09:59 AM.

                                Comment

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

                                  #416
                                  Originally posted by abuge
                                  rex98 sir i have try your post 355 no luck can you plz unlock my two bios file
                                  Here use this its the new BID U86.

                                  HP EliteBook 640 14 inch G9 U86
                                  The patch won't work if the bios version is latest. use this bin flash both it won't work if you only flash the main you should Flash Both.
                                  first boot press f10 apply factory defaults and restart, 2nd boot reset security settings to defaults and exit.
                                  use BCU and put your original DMI.​
                                  Attached Files

                                  Comment

                                  • eren123
                                    New Member
                                    • Mar 2014
                                    • 3
                                    • uk

                                    #417
                                    Can you help me to remove the Bios password please?

                                    Elitebook 640 G9

                                    S/N:5CD4071JQT
                                    PROD_ID:4D0Y7AV
                                    Attached Files

                                    Comment

                                    • Bios Cracker
                                      Badcaps Veteran
                                      • Oct 2024
                                      • 306
                                      • India

                                      #418
                                      Originally posted by eren123
                                      Can you help me to remove the Bios password please?

                                      Elitebook 640 G9

                                      S/N:5CD4071JQT
                                      PROD_ID:4D0Y7AV
                                      Try and Update.
                                      Attached Files

                                      Comment

                                      • eren123
                                        New Member
                                        • Mar 2014
                                        • 3
                                        • uk

                                        #419
                                        Originally posted by Bios Cracker

                                        Try and Update.
                                        Still asks BIOS password

                                        Comment

                                        • eren123
                                          New Member
                                          • Mar 2014
                                          • 3
                                          • uk

                                          #420
                                          Ok, flashed both SPI and EC using the files from rex98 at #412 and it worked. Thanks!

                                          Comment

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