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Legion Y540 Bios Password Reset

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    #21
    Originally posted by volinakis View Post

    try pass: 2014
    thanks it works

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      #22
      Originally posted by alexeyb43 View Post

      thanks it works
      you are welcome
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        #23
        Originally posted by clrscr View Post

        how to find ? can you shar ?
        Yes this video will help: https://www.youtube.com/watch?v=IhRw7ePhLKs

        Video is for an Ideapad but same principle applies for Legion, you will need to dump the contents of the BIOS chip.

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          #24
          Originally posted by pickledegg View Post

          Yes this video will help: https://www.youtube.com/watch?v=IhRw7ePhLKs

          Video is for an Ideapad but same principle applies for Legion, you will need to dump the contents of the BIOS chip.
          thanks!
          ************************************************** ***********************************
          Due to a lack of donations, server free space at a critical level, and possible closure of Bios Requests
          all donations are welcome,
          see the donate button at the bottom of the page, or
          >>>>> click on this link to donate via PayPal. <<<<<
          Every donation made will go towards server fees and maintenance costs.
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            #25
            Please help me too ı dont know my bios password Legion Y540-15IRH
            S/N: PF25AFHR
            MTM: 81SX014AKR

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              #26
              Originally posted by Etres View Post
              Please help me too ı dont know my bios password Legion Y540-15IRH
              S/N: PF25AFHR
              MTM: 81SX014AKR
              post the original contents of the bios chip..

              you need an SPI programmer...here is a video for example..https://www.youtube.com/watch?v=DWWi...nnel=ThisIsHow

              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.

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                #27
                y540-bios.zip
                Model name : 81SY(Lenovo Legion Y540-15IRH-PG0)
                S/N : PF14M6YH

                When I turn on my laptop:
                • The display backlight turns on, but the screen remains black. I can see that the backlight has power.
                • The keyboard light turns on, and I can toggle it on and off using the backlight button.
                • The fan spins for a second and then stops.
                • After a while, even though the screen is still black, I can hear the Windows boot sound.
                I have bought the CH341A Programmer and read the bios
                here is the bios detail and uploaded the bios file i read
                Click image for larger version  Name:	image.png Views:	1 Size:	10.5 KB ID:	3631810
                Last edited by denjimakima; 05-07-2025, 01:12 PM.

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                • peste
                  peste commented
                  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..

                #28
                you have everything you need at post #10

                https://www.badcaps.net/forum/troubl...sx#post1809315


                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.

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