Extract bios password from EliteBook 840 G8 Bios dump, possible?

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  • nesredin
    Member
    • Feb 2018
    • 36
    • ethiopia

    #541
    mode elitebook 840 g8
    SN=5CG227667N
    motherboaerd number = 6050a3426501-mb-a02

    Comment

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

      #542
      Originally posted by nesredin
      mode elitebook 840 g8
      SN=5CG227667N
      motherboaerd number = 6050a3426501-mb-a02
      Unlocked
      Attached Files


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      Comment


      • nesredin
        nesredin commented
        Editing a comment
        work perfect
        thank you
    • Hachem25
      Member
      • Aug 2021
      • 45
      • algeria

      #543
      I need help with this elitebook 840 G8
      sn 5CG1445VST.
      I have read it's ec ( probably) (on the back of the cpu ) but when choosing the chip i selected the wson 8*6 (3*256), after rewriting the new bios the pc didn't come on, and when i press the power button it blinks 7 times. i tries using a different chip but nothing. i even tried to use a firmware from the ones that are posted in this thread but nothing as well.
      i will attache the file that i read, and i hope someone can help me. thank you
      Attached Files

      Comment

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

        #544
        Originally posted by Hachem25
        I need help with this elitebook 840 G8
        sn 5CG1445VST.
        I have read it's ec ( probably) (on the back of the cpu ) but when choosing the chip i selected the wson 8*6 (3*256), after rewriting the new bios the pc didn't come on, and when i press the power button it blinks 7 times. i tries using a different chip but nothing. i even tried to use a firmware from the ones that are posted in this thread but nothing as well.
        i will attache the file that i read, and i hope someone can help me. thank you
        HP EliteBook 840 G8_T76 EC
        Attached Files


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        All donations to Badcaps are welcome.
        Become a Badcaps supporter
        >>>>> click on this link to donate <<<<<
        Thanks to all supporters.
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        Comment


        • Hachem25
          Hachem25 commented
          Editing a comment
          unfortunattly it didnt work. i dont know why .
      • Hachem25
        Member
        • Aug 2021
        • 45
        • algeria

        #545
        i will attache this 2 photos maybe you'll spot if there is any missing components
        Attached Files

        Comment

        • hyditech
          Badcaps Veteran
          • Jun 2012
          • 272
          • nigeria

          #546
          Good after everyone, please me to unlock the password for hp zbook firefly 14 g8
          S/N 5CG2219Y3M
          same board number with 840 g8
          thanks

          Comment


          • Vesko356
            Vesko356 commented
            Editing a comment
            Doesn't matter if it's the same motherboard or not, it's a different model.
            There is an existing thread for this model, find it and post your request there as per the rules.
        • chocouy
          Member
          • Jan 2024
          • 12
          • Philippines

          #547
          Good day, I was reading through the forums and have found (maybe) a solution to my problem.

          What I have gathered is that I need to remove the BIOS password first then edit DMI to remove SWAT lock?

          Are absolute persistence = SWAT = computrace the same?

          and lastly, how do I know which is the MAIN bios and the EC bios?

          Thanks!

          Comment

          • chocouy
            Member
            • Jan 2024
            • 12
            • Philippines

            #548
            okay, managed to figure out which is the Main and EC chip

            EC - Back of Processor
            MAIN - Near Processor​

            Comment

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

              #549
              Originally posted by chocouy
              Good day, I was reading through the forums and have found (maybe) a solution to my problem.

              What I have gathered is that I need to remove the BIOS password first then edit DMI to remove SWAT lock?

              Are absolute persistence = SWAT = computrace the same?

              and lastly, how do I know which is the MAIN bios and the EC bios?

              Thanks!
              upload here the main and EC.

              Comment

              • chocouy
                Member
                • Jan 2024
                • 12
                • Philippines

                #550
                Originally posted by rex98

                upload here the main and EC.
                hi good evening, here are my DUMPS

                Attached Files
                Last edited by chocouy; 01-22-2024, 10:31 AM.

                Comment

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

                  #551
                  Originally posted by chocouy

                  hi good evening, here are my DUMPS

                  SN# 5CG21148K4
                  write only main chipset, at 1st boot press F10 to enter bios setup and restore factory defaults, save, then restore DMI with BCU.
                  Attached Files
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                  Comment

                  • chocouy
                    Member
                    • Jan 2024
                    • 12
                    • Philippines

                    #552
                    Originally posted by volinakis

                    write only main chipset, at 1st boot press F10 to enter bios setup and restore factory defaults, save, then restore DMI with BCU.
                    thanks but I have a problem with my laptop now, I tried editing the EC bin myself and flashed a bin that I have downloaded here to my own chip. now my laptop wont turn on, only blinking light and 0.040-0.045 amps power draw. I flashed my back up bin file but it's still the same, my solder is good, what could be the problem?

                    Comment

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

                      #553
                      Originally posted by chocouy

                      thanks but I have a problem with my laptop now, I tried editing the EC bin myself and flashed a bin that I have downloaded here to my own chip. now my laptop wont turn on, only blinking light and 0.040-0.045 amps power draw. I flashed my back up bin file but it's still the same, my solder is good, what could be the problem?
                      maybe you didn't read correctly EC chip otherwise it should have worked if you write the original back. At G8 you have to modify main bios, not EC.
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                      Comment

                      • chocouy
                        Member
                        • Jan 2024
                        • 12
                        • Philippines

                        #554
                        Originally posted by volinakis
                        maybe you didn't read correctly EC chip otherwise it should have worked if you write the original back. At G8 you have to modify main bios, not EC.
                        if i have read incorrectly, can I use another EC bin from others?

                        Comment

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

                          #555
                          Originally posted by chocouy

                          if i have read incorrectly, can I use another EC bin from others?
                          maybe, but you'll have problems with endpoint security. I don't know how to fix EC, maybe another member will help you to fix it.
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                          • rex98
                            Badcaps Legend
                            • Feb 2023
                            • 1234
                            • Mandaue CEBU, Philippines

                            #556
                            Originally posted by chocouy

                            if i have read incorrectly, can I use another EC bin from others?
                            try my post at number 531 flash both main and ec.
                            https://www.badcaps.net/forum/troubl...18#post1872818




                            Comment

                            • chocouy
                              Member
                              • Jan 2024
                              • 12
                              • Philippines

                              #557
                              Originally posted by rex98

                              try my post at number 531 flash both main and ec.
                              https://www.badcaps.net/forum/troubl...18#post1872818



                              tried flashing it with triple checking the bin files, now the laptop is flashing 7 times on capslock.

                              Comment

                              • chocouy
                                Member
                                • Jan 2024
                                • 12
                                • Philippines

                                #558
                                Originally posted by rex98

                                try my post at number 531 flash both main and ec.
                                https://www.badcaps.net/forum/troubl...18#post1872818



                                hey! got the laptop finally working, I flashed both your BIOS and it loaded to the login screen of windows. but after a few minutes the SWAT lock activates again, any suggestions?

                                Comment

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

                                  #559
                                  Originally posted by chocouy

                                  hey! got the laptop finally working, I flashed both your BIOS and it loaded to the login screen of windows. but after a few minutes the SWAT lock activates again, any suggestions?
                                  flash it again. in first boot press f10 , reset security settings to default. if you don't do that absolute wont be deactivated.

                                  Comment

                                  • chocouy
                                    Member
                                    • Jan 2024
                                    • 12
                                    • Philippines

                                    #560
                                    Originally posted by rex98

                                    flash it again. in first boot press f10 , reset security settings to default. if you don't do that absolute wont be deactivated.
                                    need to flash both again?

                                    Comment

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