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    Re: HP BIOS unlock tool

    Originally posted by hoaca388 View Post
    No, i was build a new file from your file. Of course it should be 16MB.
    The file you build still gives the same error....any other ideas on how to get rid of the error message ? or other code that could disable that message?

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      Re: HP BIOS unlock tool

      I didn`t check it yet but I found EPZ2019 mod on youtube which is simply connecting pin 4 with ground.I`m gonna check it on weekend with chip removed and not removed from mb.This is a link to tutorial how to do it:

      https://www.youtube.com/watch?v=8_sCP9a56cw&t=30s

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        Re: HP BIOS unlock tool

        Please remove bios password my hp ProBook 640 g3
        Thanks
        Attached Files

        Comment


          Re: HP BIOS unlock tool

          Originally posted by homer66 View Post
          Please remove bios password my hp ProBook 640 g3
          Thanks
          https://www.badcaps.net/forum/showthread.php?t=98539


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            Re: HP BIOS unlock tool

            Thank you, working!

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              Re: HP BIOS unlock tool

              I`ve got to remove password from Hp 820 G5.I`ve made a dump from W25q256 wich is 32mb one.RcUnlocker doesn`t work with this file.I used HpUnlocker but I`m not sure if it`s ok.May I ask sombody to check it for me and eventually if its wrong, make it correct for me.I`m attaching original locked dump, unlocked using HPunlocker and image after trying to unlock it using RCunlocker.
              Thank you in advance.
              Attached Files

              Comment


                Re: HP BIOS unlock tool

                Hi and thanks for your tool!

                I have a ProBook 470 G2 with a password protected Bios, I tried your tool to unlock it but after reflashing it's still asking for the password.

                Here is the procedure I used:

                Unplugged and removed the laptop battery.
                Used the CH341a to extract the Bios from the chip in place (without de-soldering).
                Unlocked the extracted Bios with HPUnlocker tool.
                Reflashed the unlocked Bios in place.
                Put back the battery and plugged in the laptop then tried to enter the Bios, but it's still asking password.

                Should I try to remove also the CMOS battery before flashing?

                If it helps I join the two Bios (unlocked and original)

                Thanks!
                Attached Files

                Comment


                  Re: HP BIOS unlock tool

                  Originally posted by N0f3ar View Post
                  hi to all please help me unlock hp 840 g6
                  Hi,
                  What programmer did you use to read is25lp128 chip?
                  I`ve got EZP2019+ but it doesn`t support this chip

                  Comment


                    Re: HP BIOS unlock tool

                    Originally posted by kba81 View Post
                    I`ve got to remove password from Hp 820 G5.I`ve made a dump from W25q256 wich is 32mb one.RcUnlocker doesn`t work with this file.I used HpUnlocker but I`m not sure if it`s ok.May I ask sombody to check it for me and eventually if its wrong, make it correct for me.I`m attaching original locked dump, unlocked using HPunlocker and image after trying to unlock it using RCunlocker.
                    Thank you in advance.
                    fixed
                    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.
                    ----------------------------------------------------------------------------------------------------------------------------------------------------------​

                    Comment


                      Re: HP BIOS unlock tool

                      Originally posted by flo34 View Post
                      Hi and thanks for your tool!

                      I have a ProBook 470 G2 with a password protected Bios, I tried your tool to unlock it but after reflashing it's still asking for the password.

                      Here is the procedure I used:

                      Unplugged and removed the laptop battery.
                      Used the CH341a to extract the Bios from the chip in place (without de-soldering).
                      Unlocked the extracted Bios with HPUnlocker tool.
                      Reflashed the unlocked Bios in place.
                      Put back the battery and plugged in the laptop then tried to enter the Bios, but it's still asking password.

                      Should I try to remove also the CMOS battery before flashing?

                      If it helps I join the two Bios (unlocked and original)

                      Thanks!
                      Remove all power on the mainboard while flashing the chip because at this time the power supply to the chip is provided by the programmer.


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

                      Comment


                        Re: HP BIOS unlock tool

                        Thanks but how to do to remove all power if the battery is already removed and if it's the programmer that's giving power? Will it works if I keep the power button pushed while flashing the chip?

                        Regards

                        Comment


                          Re: HP BIOS unlock tool

                          Originally posted by flo34 View Post
                          Thanks but how to do to remove all power if the battery is already removed and if it's the programmer that's giving power? Will it works if I keep the power button pushed while flashing the chip?

                          Regards
                          hold down the power button ? what for ?


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

                          Comment


                            Re: HP BIOS unlock tool

                            Originally posted by hoaca388 View Post
                            hold down the power button ? what for ?
                            In fact I don't know how to remove the power from the board while flashing, because this chip is soldered to board an I'm flashing it in place.

                            I tried erasing the chip before reflashing but it's the same result, it's still asking me the password.

                            Thanks

                            Comment


                              Re: HP BIOS unlock tool

                              Remove all battery. Main battery and CMOS battery.


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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


                                Re: HP BIOS unlock tool

                                I realize that the bios chip W25Q64FV operates in 3.3V but my CH341a operates at 5V. Could this be the problem? If I lower the voltage of the CH341a to 3.3V will it works?
                                In fact when I flash or read the chip the board is indeed powered by the CH341a because I can see that the light of the power button turns on (although there is no battery plugged in).

                                Comment


                                  Re: HP BIOS unlock tool

                                  Originally posted by hoaca388 View Post
                                  Remove all battery. Main battery and CMOS battery.
                                  Sorry I didn't see your previous post, I will try then without CMOS battery (all other power sources are already disconnected).
                                  But I was thinking also that maybe isolating the power pin of the Bios chip from the board can also work to avoid it to power the board, it's pin 8 on W25Q64FV.

                                  Thanks
                                  Last edited by flo34; 04-11-2022, 06:10 AM.

                                  Comment


                                    Re: HP BIOS unlock tool

                                    Originally posted by flo34 View Post
                                    I realize that the bios chip W25Q64FV operates in 3.3V but my CH341a operates at 5V. Could this be the problem? If I lower the voltage of the CH341a to 3.3V will it works?
                                    In fact when I flash or read the chip the board is indeed powered by the CH341a because I can see that the light of the power button turns on (although there is no battery plugged in).
                                    Lower the voltage to 3.3 volts or you will damage the bios chip


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

                                    Comment


                                      Re: HP BIOS unlock tool

                                      Originally posted by hoaca388 View Post
                                      Lower the voltage to 3.3 volts or you will damage the bios chip
                                      OK it worked thanks a lot for your help! Simply removed the CMOS battery (along with all other power sources) did the trick (I wanted to avoid it because I had to fully disassemble the laptop).
                                      Apparently, I didn't need to lower the voltage to 3.3V, it seems that some chip are not damaged by the 5V.

                                      Thanks again!

                                      Comment


                                        Re: HP BIOS unlock tool

                                        sir my laptop in no display 830 g7 fan making noise with high speed i programm many bios but condition same i think clear me issue any body can help plz plz reply 10th gen laptop

                                        Comment


                                          Re: HP BIOS unlock tool

                                          Originally posted by rehan View Post
                                          sir my laptop in no display 830 g7 fan making noise with high speed i programm many bios but condition same i think clear me issue any body can help plz plz reply 10th gen laptop
                                          send old dump

                                          Comment

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