L15 Gen 4 Supervisor PW reset

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  • Robin Dieker
    New Member
    • Sep 2024
    • 4
    • Germany
    #1

    L15 Gen 4 Supervisor PW reset

    Hi

    I have a problem I want to reinstall win11 on my laptop but I set a supervisor password which I forgot so I couldnt get into the boot menu. I then tried to enter my "standard" Passwords but now it just tells me that i am locked out and a superuser password is required and that I should press F1 to enter setup. Unfortunately I havent registered my Fingerprint with it.

    Any way to reset the supervisor password without contacting lenovo? I have seen some kind of usb device however I think I would need access to the BIOS to flash it, right?

    Thanks

    If you need info;

    Serial PW-09S0V1
    Model 21H4S9FK00
    Type 21H4-S9FX00

    Thanks!
    Tags: None
    • ibo
      Senior Member
      • Oct 2019
      • 93
      • Turkiye
      #2
      what is motherboard nr and what is the super IO chip?

        Comment

        • Robin Dieker
          New Member
          • Sep 2024
          • 4
          • Germany
          #3
          Thank you so much for reply. How can I check what super IO Chip I have? motherboard you mean CPU or what?
          Does this help?
          i5-1345U vP,IG,WIN,yA,dT,yAB,EI
          Part -Nr.5B21L33635​

            Comment

            • Robin Dieker
              New Member
              • Sep 2024
              • 4
              • Germany
              #4
              Originally posted by ibo
              what is motherboard nr and what is the super IO chip?
              Does this help?
              i5-1345U vP,IG,WIN,yA,dT,yAB,EI
              Part -Nr.5B21L33635​

                Comment

                • ibo
                  Senior Member
                  • Oct 2019
                  • 93
                  • Turkiye
                  #5
                  Originally posted by Robin Dieker

                  Does this help?
                  i5-1345U vP,IG,WIN,yA,dT,yAB,EI
                  Part -Nr.5B21L33635​
                  No you must take out the board and look some nr on it
                  also look what the SIO chip is

                    Comment

                    • medinfo
                      Badcaps Veteran
                      • May 2016
                      • 328
                      • Morocco
                      #6
                      ThinKpad L15 Gen 4 Possible Bios password unlock ?

                        Comment

                        • peste
                          #6.1
                          peste commented
                          04-26-2025, 11:43 AM
                          Editing a comment
                          post merged..next time look for a thread with the name and model, motherboard model of the laptop, and post there, if you can't find it, then make a new thread..
                        • medinfo
                          Badcaps Veteran
                          • May 2016
                          • 328
                          • Morocco
                          #7
                          Originally posted by medinfo
                          ThinKpad L15 Gen 4 Possible Bios password unlock ?
                          thanks

                            Comment

                            • medinfo
                              Badcaps Veteran
                              • May 2016
                              • 328
                              • Morocco
                              #8
                              LG4_LT5_2_AMD_8L_GEN4_PCB_SVT2
                              223024-2
                              448.0SJ08.0021

                                Comment

                                • medinfo
                                  Badcaps Veteran
                                  • May 2016
                                  • 328
                                  • Morocco
                                  #9
                                  IO Chip : NPCX997KAABX

                                    Comment

                                    • medinfo
                                      Badcaps Veteran
                                      • May 2016
                                      • 328
                                      • Morocco
                                      #10
                                      no solution ?

                                        Comment

                                        • wo5102586
                                          Member
                                          • Jan 2024
                                          • 18
                                          • IRELAND
                                          #11
                                          Help me please! my laptop has a supervisor password in the bios chipset.

                                          there are some information might help:

                                          thinkpad L14 gen4
                                          SN: PW-0FDLV4
                                          TYPE NUMBER:21H6S34W1Y

                                          Motherboard: LG4_LT5_2_AMD_8L_GEN4_PCB_SVT2 223024-2

                                          Chipset:25LR256EYIG

                                          Attached Files

                                            Comment

                                            • wo5102586
                                              Member
                                              • Jan 2024
                                              • 18
                                              • IRELAND
                                              #12
                                              Originally posted by wo5102586
                                              Help me please! my laptop has a supervisor password in the bios chipset.

                                              there are some information might help:

                                              thinkpad L14 gen4
                                              SN: PW-0FDLV4
                                              TYPE NUMBER:21H6S34W1Y

                                              Motherboard: LG4_LT5_2_AMD_8L_GEN4_PCB_SVT2 223024-2

                                              Chipset:25LR256EYIG
                                              Could anyone help? please!😃

                                                Comment

                                                • Maxpower3
                                                  Bad Veteran
                                                  • Feb 2018
                                                  • 1215
                                                  • France
                                                  #13
                                                  Originally posted by wo5102586

                                                  Could anyone help? please!😃
                                                  Originally posted by wo5102586
                                                  my laptop has a supervisor password in the bios chipset.
                                                  ​

                                                  Password is on EC NPCX997KAABX, not in bios

                                                    Comment

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