Announcement

Collapse
No announcement yet.

need bios for HP Probook 4441s

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

    need bios for HP Probook 4441s

    i need bios for HP Probook 4441s.

    please share.

    thanks.

    #2
    Re: need bios for HP Probook 4441s

    Just download it from HP. They offer full bios files in their flasher. And actually have a bad flash recovery processes built into their Probook and Elitebook series. No need to even open these units if you have a bad bios flash.

    Make a Fat32 partition of 2GB on a USB stick called HP_TOOLS. place bios in there for your model according to their recovery instruction. Boot the unit holding the recovery keys, and you're back in business.

    Reference for you http://support.hp.com/us-en/document/c02693833
    Last edited by JeffJ; 03-02-2015, 08:40 AM.

    Comment


      #3
      Re: need bios for HP Probook 4441s

      or post your old bios dump here and i will help you
      Im Back... sort of...

      Comment


        #4
        Re: need bios for HP Probook 4441s

        Originally posted by ala_borbe View Post
        or post your old bios dump here and i will help you
        The probooks and elitebooks will not flash a bios with out a Sig file that matches the binary. so a dump obviously wont have a sig.

        I've tried flashing a dump back to my Elitebook, and it always rejects it. Force flashed it to the SPi chip and it refused to boot. Had to recover the bios. HP's bios are encrypted and are signed via RSA. This is the same reason why no one to this date has removed the white-lists from these bioses as far as i have found.

        "That .sig file is unique and will not verify any other roms expect the one it was made for. So any modifications to the bios will require a new .sig in order to flash it via efi. Unfortunately we can only generate the .sig when the bios is previously encrypted by HP or if we know HP's private RSA key."

        If you have a corrupted bios the way to recover it is with the suggestion i made earlier. If your trying to modify it, the machine will refuse to boot on it and will need the bios recovered, if you force flash it. If you use HP's built in recovery to flash it or their flash tool it will just tell you its invalid.

        Comment


          #5
          Re: need bios for HP Probook 4441s

          @JeffJ

          you are wrong for some aspect

          @masud

          backup old bios and try both

          first file dump from some laptop, not mine dump
          second file some of my work

          pls try both
          Attached Files
          Im Back... sort of...

          Comment


            #6
            Re: need bios for HP Probook 4441s

            ala_Borbe Thnk's Man

            Comment


              #7
              Re: need bios for HP Probook 4441s

              good bro....

              Comment


                #8
                Re: need bios for HP Probook 4441s

                thanks you.

                Comment


                  #9
                  Re: need bios for HP Probook 4441s

                  thanks

                  Comment


                    #10
                    Re: need bios for HP Probook 4441s

                    thanks

                    Comment


                      #11
                      Re: need bios for HP Probook 4441s

                      thnx

                      Comment


                        #12
                        Re: need bios for HP Probook 4441s

                        Thanks

                        Comment


                          #13
                          Re: need bios for HP Probook 4441s

                          It freeze at HP logo.

                          Comment


                            #14
                            Re: need bios for HP Probook 4441s

                            Originally posted by ala_borbe View Post
                            @JeffJ

                            you are wrong for some aspect

                            @masud

                            backup old bios and try both

                            first file dump from some laptop, not mine dump
                            second file some of my work

                            pls try both
                            Is it working for Discrete motherboard ?. I upload it. its working showing logo only there is no vcc_gfxcore and gfx coil also not giving power. and its freezes on that logo stage. no response on keyboard or usb. There is no old bios chip on this motherboard. someone has removed it already.

                            Comment

                            Working...
                            X