Hp elitebook 840 g5 bios password

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  • q2v5
    New Member
    • Sep 2023
    • 7
    • Australia

    #221
    Re: Hp ellİtebook 840 g5 bios password

    Originally posted by hoaca388
    RC unlocker. Use rc unlocker for 16 MB chip.
    Thank you very much.

    I soldered back the 32MB chip but maybe I killed it as now I get flashing power light. Will have to try a new chip before I flash the other 16MB I think.

    Comment

    • hoaca388
      Badcaps
      • Jan 2022
      • 11653
      • Socialist Republic of Vietnam

      #222
      Re: Hp ellİtebook 840 g5 bios password

      Originally posted by q2v5
      Thank you very much.

      I soldered back the 32MB chip but maybe I killed it as now I get flashing power light. Will have to try a new chip before I flash the other 16MB I think.
      HP EliteBook 840 G5 Notebook PC
      Attached Files


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      Comment

      • q2v5
        New Member
        • Sep 2023
        • 7
        • Australia

        #223
        Re: Hp ellİtebook 840 g5 bios password

        Originally posted by hoaca388
        HP EliteBook 840 G5 Notebook PC
        Thanks, I tried this- now the keyboard/powerlights come on, then the power light flashes orange 30 times, then 7 times & it powers off.

        I haven't flashed the 16MB chip yet as I wanted to make sure I fixed this problem first, but should I flash it to work with your file?

        Thanks again

        Comment

        • aldopc
          Badcaps Veteran
          • Jul 2017
          • 465
          • Chilito

          #224
          Re: Hp ellİtebook 840 g5 bios password

          Originally posted by q2v5
          Thanks, I tried this- now the keyboard/powerlights come on, then the power light flashes orange 30 times, then 7 times & it powers off.

          I haven't flashed the 16MB chip yet as I wanted to make sure I fixed this problem first, but should I flash it to work with your file?

          Thanks again
          Hello, you must first solve the 32mb chip, it must turn on again, locked, leaving your original copy, if you still have no image, you must check the soldering of your chip on the board, you must also check the components that are around your chip, maybe some microcomponent came out. Upload an image of that sector to verify...

          Comment

          • q2v5
            New Member
            • Sep 2023
            • 7
            • Australia

            #225
            Re: Hp ellİtebook 840 g5 bios password

            Originally posted by aldopc
            Hello, you must first solve the 32mb chip, it must turn on again, locked, leaving your original copy, if you still have no image, you must check the soldering of your chip on the board, you must also check the components that are around your chip, maybe some microcomponent came out. Upload an image of that sector to verify...
            Thank you everyone for your help, I tried reflashing my backup & resoldering but the same problem.
            Attached Files

            Comment

            • Vesko356
              VIP Moderator
              • Aug 2018
              • 4386
              • Bulgaria 🇧🇬

              #226
              Re: Hp ellİtebook 840 g5 bios password

              Originally posted by q2v5
              Thank you everyone for your help, I tried reflashing my backup & resoldering but the same problem.
              Attached Files
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              Comment

              • aldopc
                Badcaps Veteran
                • Jul 2017
                • 465
                • Chilito

                #227
                Re: Hp ellİtebook 840 g5 bios password

                Originally posted by Vesko356
                Correct, you lost 2 resistors, the one on the left is 468 kΩ and the one on the right is 0.02 kΩ
                Attached Files

                Comment

                • q2v5
                  New Member
                  • Sep 2023
                  • 7
                  • Australia

                  #228
                  Re: Hp ellİtebook 840 g5 bios password

                  @Vesko356 Thanks, guess it's time to buy a microscope..

                  Originally posted by aldopc
                  Correct, you lost 2 resistors, the one on the left is 468 kΩ and the one on the right is 0.02 kΩ
                  Thanks also, will order those values & be more careful.

                  Comment

                  • klasg
                    New Member
                    • Aug 2023
                    • 1
                    • Sverige

                    #229
                    Re: Hp ellİtebook 840 g5 bios password

                    Originally posted by aldopc
                    Correct, you lost 2 resistors, the one on the left is 468 kΩ and the one on the right is 0.02 kΩ
                    Do you know the values on the other 2 resistors around the chip?

                    Comment

                    • ashr88
                      Senior Member
                      • Mar 2023
                      • 59
                      • United Kingdom

                      #230
                      Hi, I have an HP Elitebook 840 G5 and I need the bios password removing. I tried the 16mb file on the RC unlocker and the password remains. Then I tried the 32MB file on the HP unlocker and it doesn't boot and only the fans spin up fully but no display. I've attached both 16 and 32mb files. Please could somebody advise or help? Thank you.

                      Serial No: 5CG9086VV9
                      Attached Files

                      Comment

                      • hoaca388
                        Badcaps
                        • Jan 2022
                        • 11653
                        • Socialist Republic of Vietnam

                        #231
                        Originally posted by ashr88
                        Hi, I have an HP Elitebook 840 G5 and I need the bios password removing. I tried the 16mb file on the RC unlocker and the password remains. Then I tried the 32MB file on the HP unlocker and it doesn't boot and only the fans spin up fully but no display. I've attached both 16 and 32mb files. Please could somebody advise or help? Thank you.

                        Serial No: 5CG9086VV9
                        Unlocked
                        Attached Files


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                        Mọi khoản quyên góp cho badcaps đều được hoan nghênh, hãy nhấp vào liên kết này để quyên góp. Cảm ơn tất cả những người ủng hộ----------------------------------------------------------------------------------------------------------------------------------------------------------------

                        Comment

                        • ashr88
                          Senior Member
                          • Mar 2023
                          • 59
                          • United Kingdom

                          #232
                          Originally posted by hoaca388

                          Unlocked
                          Thank you for that. I flashed them both but the laptop is still a no boot. Fan up full, power consumption stuck at .256a. CPU is freezing. Any ideas? It was booting now I seem to have murdered it!

                          Comment

                          • hoaca388
                            Badcaps
                            • Jan 2022
                            • 11653
                            • Socialist Republic of Vietnam

                            #233
                            Originally posted by ashr88

                            Thank you for that. I flashed them both but the laptop is still a no boot. Fan up full, power consumption stuck at .256a. CPU is freezing. Any ideas? It was booting now I seem to have murdered it!
                            Replace a blank chip and flash again


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                            Mọi khoản quyên góp cho badcaps đều được hoan nghênh, hãy nhấp vào liên kết này để quyên góp. Cảm ơn tất cả những người ủng hộ----------------------------------------------------------------------------------------------------------------------------------------------------------------

                            Comment

                            • ashr88
                              Senior Member
                              • Mar 2023
                              • 59
                              • United Kingdom

                              #234
                              Originally posted by hoaca388

                              Replace a blank chip and flash again
                              Do you mean blank the chip or replace the chip with a new one? Do you mean replace all chips?

                              Comment

                              • hoaca388
                                Badcaps
                                • Jan 2022
                                • 11653
                                • Socialist Republic of Vietnam

                                #235
                                Originally posted by ashr88

                                Do you mean blank the chip or replace the chip with a new one? Do you mean replace all chips?
                                Yes ! Have you read article 226 yet?


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                                Mọi khoản quyên góp cho badcaps đều được hoan nghênh, hãy nhấp vào liên kết này để quyên góp. Cảm ơn tất cả những người ủng hộ----------------------------------------------------------------------------------------------------------------------------------------------------------------

                                Comment

                                • ashr88
                                  Senior Member
                                  • Mar 2023
                                  • 59
                                  • United Kingdom

                                  #236
                                  Originally posted by hoaca388

                                  Yes ! Have you read article 226 yet?
                                  Thank you, I accidentally knocked this off. I've replaced it and now it's booted! Thank you.

                                  Comment

                                  • ashr88
                                    Senior Member
                                    • Mar 2023
                                    • 59
                                    • United Kingdom

                                    #237
                                    Originally posted by hoaca388

                                    Unlocked
                                    Hi again, I have another 840 G5 which came to me as a no boot. I found it was missing the bios chips so I flashed these bios files to doner chips and it now boots. The only issue is that it takes 40 seconds to post so I assumed I needed to clean the ME so using the Intel ME/TXE injector and injected 11.8.70.3626 and it boots but it still takes 40 seconds to post. What should I do to resolve this? Thank you.

                                    I have attached the files.

                                    HP Elitebook 840 G5
                                    Serial No: 5CG9086VV9 (May be incorrect as I got a job lot of them some didn't have bottom covers.)
                                    Attached Files

                                    Comment

                                  • ashr88
                                    Senior Member
                                    • Mar 2023
                                    • 59
                                    • United Kingdom

                                    #238
                                    Originally posted by ashr88

                                    Hi again, I have another 840 G5 which came to me as a no boot. I found it was missing the bios chips so I flashed these bios files to doner chips and it now boots. The only issue is that it takes 40 seconds to post so I assumed I needed to clean the ME so using the Intel ME/TXE injector and injected 11.8.70.3626 and it boots but it still takes 40 seconds to post. What should I do to resolve this? Thank you.

                                    I have attached the files.

                                    HP Elitebook 840 G5
                                    Serial No: 5CG9086VV9 (May be incorrect as I got a job lot of them some didn't have bottom covers.)
                                    Thanks, will take a look!

                                    Thanks, all sorted now!
                                    Last edited by Vesko356; 01-01-2024, 10:46 AM. Reason: Posts merged

                                    Comment

                                    • piotrekw27
                                      New Member
                                      • Aug 2023
                                      • 5
                                      • Polska

                                      #239
                                      Hello. Can someone help me unlock the 32MB BIOS for 840 G5?
                                      By the way, the question is how is this done? I usually use RCUnlocker but it doesn't work with 32MB files.
                                      Thank you in advance for your help. Regards
                                      Attached Files

                                      Comment

                                    • hoaca388
                                      Badcaps
                                      • Jan 2022
                                      • 11653
                                      • Socialist Republic of Vietnam

                                      #240
                                      Originally posted by piotrekw27
                                      Hello. Can someone help me unlock the 32MB BIOS for 840 G5?
                                      By the way, the question is how is this done? I usually use RCUnlocker but it doesn't work with 32MB files.
                                      Thank you in advance for your help. Regards
                                      VVV
                                      Attached Files


                                      ---------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------
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