Lenovo T490s bios password request.

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  • vikivng
    Badcaps Veteran
    • Feb 2019
    • 216
    • uk

    #1

    Lenovo T490s bios password request.

    Hi guys pls help me with this file.
    Can someone clean for me pls.?
    Attached Files
    Last edited by SMDFlea; 01-21-2022, 03:39 AM. Reason: password request
  • vikivng
    Badcaps Veteran
    • Feb 2019
    • 216
    • uk

    #2
    Re: Lenovo 490 bios request.

    file looks quite small but i have read and verified 3 times .

    Comment

    • SMDFlea
      Super Moderator
      • Jan 2018
      • 20441
      • UK

      #3
      Re: Lenovo 490 bios request.

      Originally posted by vikivng
      file looks quite small but i have read and verified 3 times .
      It is too small.Are you using a CH341A and a clip
      All donations to badcaps are welcome, click on this link to donate. Thanks to all supporters

      Comment

      • vikivng
        Badcaps Veteran
        • Feb 2019
        • 216
        • uk

        #4
        Re: Lenovo 490 bios request.

        Hi,im using CH341a chip soldered directly onto programmer

        Comment

        • SMDFlea
          Super Moderator
          • Jan 2018
          • 20441
          • UK

          #5
          Re: Lenovo 490 bios request.

          Originally posted by vikivng
          Hi,im using CH341a chip soldered directly onto programmer
          Use NeoProgrammer,Colibri or ASProgrammer software ,you`ll find them all on the forum if you search.
          All donations to badcaps are welcome, click on this link to donate. Thanks to all supporters

          Comment

          • vikivng
            Badcaps Veteran
            • Feb 2019
            • 216
            • uk

            #6
            Re: Lenovo 490 bios request.

            Yep neoprogrammer also gives the identical reading..

            Comment

            • vikivng
              Badcaps Veteran
              • Feb 2019
              • 216
              • uk

              #7
              Re: Lenovo 490 bios request.

              Does anyone have any ideas on what the issue could be.?

              Comment

              • SMDFlea
                Super Moderator
                • Jan 2018
                • 20441
                • UK

                #8
                Re: Lenovo 490 bios request.

                Originally posted by vikivng
                Does anyone have any ideas on what the issue could be.?
                yes,after a closer look at it its the thunderbolt firmware, size 1MB. Look for another chip
                All donations to badcaps are welcome, click on this link to donate. Thanks to all supporters

                Comment

                • Repdata
                  Senior Member
                  • May 2020
                  • 67
                  • Deutschland

                  #9
                  Re: Lenovo 490 bios request.

                  Please
                  Attached Files

                  Comment

                  • vikivng
                    Badcaps Veteran
                    • Feb 2019
                    • 216
                    • uk

                    #10
                    Re: Lenovo 490 bios request.

                    Originally posted by SMDFlea
                    yes,after a closer look at it its the thunderbolt firmware, size 1MB. Look for another chip
                    Oh,,you mean this is not the bios chip.??

                    Comment

                    • SMDFlea
                      Super Moderator
                      • Jan 2018
                      • 20441
                      • UK

                      #11
                      Re: Lenovo 490 bios request.

                      Originally posted by vikivng
                      Oh,,you mean this is not the bios chip.??
                      no it isn`t
                      All donations to badcaps are welcome, click on this link to donate. Thanks to all supporters

                      Comment

                      • vikivng
                        Badcaps Veteran
                        • Feb 2019
                        • 216
                        • uk

                        #12
                        Re: Lenovo 490 bios request.

                        ok thnx.

                        Comment

                        • SMDFlea
                          Super Moderator
                          • Jan 2018
                          • 20441
                          • UK

                          #13
                          Re: Lenovo 490 bios request.

                          Originally posted by vikivng
                          ok thnx.
                          Find it ,make a few backups and compare them make sure theyre the same. Post one of the backups here so we can check if its good or not. Don`t try flashing another bios until then.
                          At post #1 you said you wanted your bios cleaning, did you mean the ME firmware or a password
                          All donations to badcaps are welcome, click on this link to donate. Thanks to all supporters

                          Comment

                          • vikivng
                            Badcaps Veteran
                            • Feb 2019
                            • 216
                            • uk

                            #14
                            Re: Lenovo 490 bios request.

                            Originally posted by SMDFlea
                            Find it ,make a few backups and compare them make sure theyre the same. Post one of the backups here so we can check if its good or not. Don`t try flashing another bios until then.
                            At post #1 you said you wanted your bios cleaning, did you mean the ME firmware or a password
                            I meant password.

                            Comment

                            • vikivng
                              Badcaps Veteran
                              • Feb 2019
                              • 216
                              • uk

                              #15
                              Re: Lenovo 490 bios request.

                              Hi,
                              could someone show me where this bios chip is located on this board.?
                              ThinkPad FT491/ FX390 NM-B891 Rev2.0

                              Comment

                              • vikivng
                                Badcaps Veteran
                                • Feb 2019
                                • 216
                                • uk

                                #16
                                Re: Lenovo 490 bios request.

                                Originally posted by vikivng
                                Hi,
                                could someone show me where this bios chip is located on this board.?
                                ThinkPad FT491/ FX390 NM-B891 Rev2.0
                                Is this the right chip?
                                Attached Files

                                Comment

                                • SMDFlea
                                  Super Moderator
                                  • Jan 2018
                                  • 20441
                                  • UK

                                  #17
                                  Re: Lenovo 490 bios request.

                                  Originally posted by vikivng
                                  Is this the right chip?
                                  No,thats a mosfet. See here https://www.allservice.ro/forum/images/T490s_bios.jpg ,post the part number on top of the chip thats arrowed
                                  All donations to badcaps are welcome, click on this link to donate. Thanks to all supporters

                                  Comment

                                  • vikivng
                                    Badcaps Veteran
                                    • Feb 2019
                                    • 216
                                    • uk

                                    #18
                                    Re: Lenovo 490 bios request.

                                    WINBOND 25Q256JVEQ
                                    Must be this one!!

                                    Comment

                                    • SMDFlea
                                      Super Moderator
                                      • Jan 2018
                                      • 20441
                                      • UK

                                      #19
                                      Re: Lenovo 490 bios request.

                                      Originally posted by vikivng
                                      WINBOND 25Q256JVEQ
                                      Must be this one!!
                                      Thats the one.Its a WSON8 you`ll need an adapter,if you havn`t already got one,or you can solder wires to the pins.
                                      All donations to badcaps are welcome, click on this link to donate. Thanks to all supporters

                                      Comment

                                      • vikivng
                                        Badcaps Veteran
                                        • Feb 2019
                                        • 216
                                        • uk

                                        #20
                                        Re: Lenovo 490 bios request.

                                        Originally posted by SMDFlea
                                        Thats the one.Its a WSON8 you`ll need an adapter,if you havn`t already got one,or you can solder wires to the pins.
                                        yes I saw this will be tricky to remove.

                                        Comment

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