Announcement

Collapse
No announcement yet.

hp 640 g2 password need bios dump

Collapse
X
 
  • Filter
  • Time
  • Show
Clear All
new posts

    #41
    Re: hp Probook 640 g2 bios password

    I did not unsolder the chip I just put a clamp on the bios connected with the USB CH341A.
    Is it also valid like that?

    Comment


      #42
      Re: hp Probook 640 g2 bios password

      Originally posted by Genova View Post
      I did not unsolder the chip I just put a clamp on the bios connected with the USB CH341A.
      Is it also valid like that?
      Yes of course, if you didn't unsolder the bios chip use the clamp to do the steps, just first remove the main and cmos battery.
      ----------------------------------------------------------------------------------------------------------------------------------------------------------
      All donations to Badcaps are welcome.
      Become a Badcaps supporter
      >>>>> click on this link to donate <<<<<
      Thanks to all supporters.​
      ----------------------------------------------------------------------------------------------------------------------------------------------------------
      Doctrina est fructus dulcis, radicis amarae.
      .

      Comment


        #43
        Re: hp Probook 640 g2 bios password

        Thanks
        Possible protection is enabled. Press "Unprotect" and check datasheet
        Erasing memory...

        Does it take some time to erase ? or just few minutes ?

        Comment


          #44
          Re: hp Probook 640 g2 bios password

          If it takes more than 5 minutes to erase the chip, something is not OK.
          Remove the main battery and connect the charger to the board, then try to do the steps again.
          Last edited by Vesko356; 01-30-2020, 08:36 AM.
          ----------------------------------------------------------------------------------------------------------------------------------------------------------
          All donations to Badcaps are welcome.
          Become a Badcaps supporter
          >>>>> click on this link to donate <<<<<
          Thanks to all supporters.​
          ----------------------------------------------------------------------------------------------------------------------------------------------------------
          Doctrina est fructus dulcis, radicis amarae.
          .

          Comment


            #45
            Re: hp Probook 640 g2 bios password

            Originally posted by Genova View Post
            Thank you so much.
            I'm new in this practice so now what i need to do ? just write the bios with this file or erase bios before or other thing ?
            The bios posted by Vesko356 is for @Patalouf ,you need to backup and post your own bios.
            All donations to badcaps are welcome, click on this link to donate. Thanks to all supporters

            Comment


              #46
              Re: hp Probook 640 g2 bios password

              @ SMDFlea
              Sorry for the mistake @patalouf was our first personnal account on badcap forum.
              Genova is our main account for office I did not pay attention as i connect at home and also at work

              Comment


                #47
                Re: hp Probook 640 g2 bios password

                Originally posted by Vesko356 View Post
                If it takes more than 5 minutes to erase the chip, something is not OK.
                Remove the main battery and connect the charger to the board, then try to do the steps again.
                ok I will try your suggest.

                Comment


                  #48
                  Re: hp Probook 640 g2 bios password

                  Originally posted by SMDFlea View Post
                  The bios posted by Vesko356 is for @Patalouf ,you need to backup and post your own bios.
                  And yes, as SMDFlea wrote, if you don't have the unlocked bios bin file for your machine, you must first read an verify the bios chip from your machine, then post the file here so we can unlock the file for you, and then do the steps mentioned above to write the unlocked bin file back to bios chip!
                  Also if the erace/write/verify operations failed after manipulation with the charger, try to do the job with the version 1.4.1 of AsProgrammer

                  Download link
                  Last edited by Vesko356; 01-30-2020, 09:17 AM.
                  ----------------------------------------------------------------------------------------------------------------------------------------------------------
                  All donations to Badcaps are welcome.
                  Become a Badcaps supporter
                  >>>>> click on this link to donate <<<<<
                  Thanks to all supporters.​
                  ----------------------------------------------------------------------------------------------------------------------------------------------------------
                  Doctrina est fructus dulcis, radicis amarae.
                  .

                  Comment


                    #49
                    Re: hp Probook 640 g2 bios password

                    Erasing in progress...

                    Comment


                      #50
                      Re: hp Probook 640 g2 bios password

                      Originally posted by Genova View Post
                      Erasing in progress...
                      Excellent...
                      ----------------------------------------------------------------------------------------------------------------------------------------------------------
                      All donations to Badcaps are welcome.
                      Become a Badcaps supporter
                      >>>>> click on this link to donate <<<<<
                      Thanks to all supporters.​
                      ----------------------------------------------------------------------------------------------------------------------------------------------------------
                      Doctrina est fructus dulcis, radicis amarae.
                      .

                      Comment


                        #51
                        Re: hp Probook 640 g2 bios password

                        All is dont correctly but now the laptop won't start :/

                        Comment


                          #52
                          Re: hp Probook 640 g2 bios password

                          Originally posted by Genova View Post
                          All is dont correctly but now the laptop won't start :/
                          This is not possible, you probably doing something wrong, did the verification of the written file completed successfully by the AsProgrammer?
                          ----------------------------------------------------------------------------------------------------------------------------------------------------------
                          All donations to Badcaps are welcome.
                          Become a Badcaps supporter
                          >>>>> click on this link to donate <<<<<
                          Thanks to all supporters.​
                          ----------------------------------------------------------------------------------------------------------------------------------------------------------
                          Doctrina est fructus dulcis, radicis amarae.
                          .

                          Comment


                            #53
                            Re: hp Probook 640 g2 bios password

                            Yes verification completed

                            Comment


                              #54
                              Re: hp Probook 640 g2 bios password

                              We are trying again with AsProgrammer 1.41 with the unlock, erase, programm, verify.
                              In progress...

                              Comment


                                #55
                                Re: hp Probook 640 g2 bios password

                                Originally posted by Genova View Post
                                Yes verification completed
                                OK, now read the chip with the AsProgrammer and compare the content of the chip with the unlocked bin file. You can do it with Total Commander.
                                ----------------------------------------------------------------------------------------------------------------------------------------------------------
                                All donations to Badcaps are welcome.
                                Become a Badcaps supporter
                                >>>>> click on this link to donate <<<<<
                                Thanks to all supporters.​
                                ----------------------------------------------------------------------------------------------------------------------------------------------------------
                                Doctrina est fructus dulcis, radicis amarae.
                                .

                                Comment


                                  #56
                                  Re: hp Probook 640 g2 bios password

                                  Originally posted by Genova View Post
                                  We are trying again with AsProgrammer 1.41 with the unlock, erase, programm, verify.
                                  In progress...
                                  OK, good.
                                  ----------------------------------------------------------------------------------------------------------------------------------------------------------
                                  All donations to Badcaps are welcome.
                                  Become a Badcaps supporter
                                  >>>>> click on this link to donate <<<<<
                                  Thanks to all supporters.​
                                  ----------------------------------------------------------------------------------------------------------------------------------------------------------
                                  Doctrina est fructus dulcis, radicis amarae.
                                  .

                                  Comment


                                    #57
                                    Re: hp Probook 640 g2 bios password

                                    Originally posted by Vesko356 View Post
                                    OK, now read the chip with the AsProgrammer and compare the content of the chip with the unlocked bin file. You can do it with Total Commander.
                                    the beginning and the end is the same

                                    Comment


                                      #58
                                      Re: hp Probook 640 g2 bios password

                                      Originally posted by Genova View Post
                                      the beginning and the end is the same
                                      What do you mean?
                                      The unlocked bin file from my post and the content of the chip after programming must be the same - absolutely the same you must check the content of the two files with Total Commander, if the program showing any difference between the two files you doing something wrong!
                                      ----------------------------------------------------------------------------------------------------------------------------------------------------------
                                      All donations to Badcaps are welcome.
                                      Become a Badcaps supporter
                                      >>>>> click on this link to donate <<<<<
                                      Thanks to all supporters.​
                                      ----------------------------------------------------------------------------------------------------------------------------------------------------------
                                      Doctrina est fructus dulcis, radicis amarae.
                                      .

                                      Comment


                                        #59
                                        Re: hp Probook 640 g2 bios password

                                        Originally posted by Genova View Post
                                        All is dont correctly but now the laptop won't start :/
                                        The ME firmware in your bios was corrupt.Try this bios with your pass removed and new ME firmware .
                                        Last edited by SMDFlea; 04-10-2023, 12:15 PM.
                                        All donations to badcaps are welcome, click on this link to donate. Thanks to all supporters

                                        Comment


                                          #60
                                          Re: hp Probook 640 g2 bios password

                                          How can i read in total commander the content of the chip ??

                                          Comment

                                          Working...
                                          X