bios for hp PROBOOK 455 G8

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  • hoaca388
    Badcaps
    • Jan 2022
    • 11189
    • Viet Nam

    #41
    Originally posted by mferna14
    Thanks for the help., @rex98 & @hoaca388., Now I simply am puzzled. @rex98 you are saying not to touch the EC Rom where as @hoaca388​ gave me a updated copy of EC Rom. Kindly inform me what to program back again. The Main SPI ROM or the EC Rom??? Get me out of this confusion. Thanks dear.
    There are 2 ways to unlock this model: via bios or via EC.


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

    • mferna14
      Badcaps Legend
      • Jun 2018
      • 1007
      • Canada

      #42
      Thanks for the help @hoaca388., Your EC update worked 100% fine, no problems at all. I did not try @rex98 as I had to reprogram the main BIOS again & would be a longer process. Anyway GREAT help both of you guys. ​

      Comment

      • anonym277
        New Member
        • Sep 2024
        • 3
        • USA

        #43
        Hello guys i tried to read my EC from my HP 455 G8 with the CH341A Programmer but on my pc and the ch341A programm i couldnt find the chip Winbond 25Q256JVEN ?

        Comment

        • peste
          Super Moderator
          • Dec 2016
          • 12248
          • ROMANIA

          #44
          Originally posted by anonym277
          Hello guys i tried to read my EC from my HP 455 G8 with the CH341A Programmer but on my pc and the ch341A programm i couldnt find the chip Winbond 25Q256JVEN ?
          try..
          https://www.badcaps.net/forum/showpo...6&postcount=10
          https://www.badcaps.net/forum/showpo...04&postcount=7


          Due to a lack of donations, server free space at a critical level, and possible closure of Bios Requests all donations are welcome, click:

          >>>>> https://www.badcaps.net/index.php?pageid=donate1 <<<<<

          Every donation made will go towards server fees and maintenance costs.

          Comment

          • anonym277
            New Member
            • Sep 2024
            • 3
            • USA

            #45
            Thank you, i found the chip with the AS Programmer. But it seems like i cant read the chip via the clipper or do i make something wrong?
            Attached Files

            Comment

            • hoaca388
              Badcaps
              • Jan 2022
              • 11189
              • Viet Nam

              #46
              Originally posted by anonym277

              Thank you, i found the chip with the AS Programmer. But it seems like i cant read the chip via the clipper or do i make something wrong?
              You used the wrong tool, with WSON chip you have to use this.

              https://shopee.vn/Bigdealsnice-Sop8-...2-4f563c2c4430
              Attached Files


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

              • Japanac
                Senior Member
                • Aug 2014
                • 90
                • Serbia

                #47
                HP ProoBook 455 G8Mainboard
                DA0X9QMB8E0 Rev: E​
                Hello can anybody repair this bios, please it turns on but there is no image on the screen, the fan is spinning at high speed
                Attached Files

                Comment

                • peste
                  Super Moderator
                  • Dec 2016
                  • 12248
                  • ROMANIA

                  #48
                  Originally posted by Japanac
                  HP ProoBook 455 G8 Hello can anybody repair this bios, please it turns on but there is no image on the screen, the fan is spinning at high speed
                  post the S/N, the motherboard model, etc.
                  Due to a lack of donations, server free space at a critical level, and possible closure of Bios Requests all donations are welcome, click:

                  >>>>> https://www.badcaps.net/index.php?pageid=donate1 <<<<<

                  Every donation made will go towards server fees and maintenance costs.

                  Comment

                  • Japanac
                    Senior Member
                    • Aug 2014
                    • 90
                    • Serbia

                    #49
                    DA0X9QMB8E0 Rev: E S/N 5CD149CPTW
                    32N01EA

                    Comment

                    • DNL
                      New Member
                      • Nov 2019
                      • 1
                      • Benin

                      #50
                      Hello everyone. Can you please help me? I have a black screen, and the fan is running at full speed.

                      Here are the details:
                      HP PROBOOK 455 G8
                      ProID: 1Y9H0AV
                      SN: 5CD1303620
                      RMN: HSN-Q31C-5
                      DA0X9QMB8D0 Rev D

                      I have attached the BIOS and EC files.

                      Thanks in advance!
                      Attached Files

                      Comment

                      • hirens
                        Senior Member
                        • May 2022
                        • 172
                        • uganda

                        #51
                        hello guys . i have a machine , fun runs at max speed and there's no display.
                        details
                        HP pro book 455 G8
                        S/N:5CD2064Y24
                        pro ID: 1Y9H0AV
                        DA0X9QMB8E0 rev:E
                        attached are my files
                        Attached Files

                        Comment

                        • volinakis
                          Badcaps Legend
                          • Jan 2021
                          • 2621
                          • N/A

                          #52
                          Originally posted by hirens
                          hello guys . i have a machine , fun runs at max speed and there's no display.
                          details
                          HP pro book 455 G8
                          S/N:5CD2064Y24
                          pro ID: 1Y9H0AV
                          DA0X9QMB8E0 rev:E
                          attached are my files
                          try this one (main bios) and if it works write DMI with BCU. You'll find values on a label of bottom case or in your bios starting with hex adress: 107A730
                          Attached Files
                          ----------------------------------------------------------------------------------------------------------------------------------------------------------------------
                          https://www.badcaps.net/donate/
                          ----------------------------------------------------------------------------------------------------------------------------------------------------------------------

                          Comment

                          • hirens
                            Senior Member
                            • May 2022
                            • 172
                            • uganda

                            #53
                            Originally posted by volinakis

                            try this one (main bios) and if it works write DMI with BCU. You'll find values on a label of bottom case or in your bios starting with hex adress: 107A730
                            capslock just blinks 5 times then fun runs at high speed no stop but no display

                            Comment

                            • warsztat
                              Senior Member
                              • Feb 2017
                              • 185
                              • Polska

                              #54
                              Hi, unlock bios please,
                              HP Probook 455 G8 DA0X9QMB8E0 REV:E
                              ProdID 1Y9H0AV
                              sn: # 5CD2132DKQ

                              dump EC_BIOS
                              Attached Files
                              Last edited by warsztat; 02-24-2025, 04:22 AM.

                              Comment

                              • hoaca388
                                Badcaps
                                • Jan 2022
                                • 11189
                                • Viet Nam

                                #55
                                Originally posted by warsztat
                                Hi, unlock bios please,
                                HP Probook 455 G8 DA0X9QMB8E0 REV:E
                                ProdID 1Y9H0AV
                                sn: # 5CD2132DKQ

                                dump EC_BIOS
                                Unlocked
                                Attached Files


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

                                • warsztat
                                  Senior Member
                                  • Feb 2017
                                  • 185
                                  • Polska

                                  #56
                                  Originally posted by hoaca388

                                  Unlocked
                                  Thank You

                                  Attached Files

                                  Comment

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