Lenovo ideapad s540-13api (AMD) driver dump request

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  • NonaHarry
    New Member
    • Sep 2020
    • 4
    • Hungary

    #1

    Lenovo ideapad s540-13api (AMD) driver dump request

    Hi everybody
    I have a ideapad s540-13 AMD version and the bios is broken during the update process. I tried to use Phoenix Crisis Disk to reflash it but with no luck.
    So I bought a bios programmer (CH341A) and SOP8 clip. Right now I need to extract bios file from the executable.

    What I have tried:
    Double click the EXE. I got a "ERROR 255 - TDK library initialization failed" error and nothing appeared in %temp% folder.
    Extract the EXE with 7z. It can not open it.
    I did find some file in the temp folder from laptop hard drive. I will attach them as well.

    Also I found two SOP8 chips on the board. Winbond 25Q80DVSIG and GigaDevice 25LB64CSIG which one is the bios chip?

    So appreciative of your help.
    Cheers
    Attached Files
    Last edited by NonaHarry; 09-02-2020, 06:17 AM.
  • SMDFlea
    Super Moderator
    • Jan 2018
    • 20745
    • UK

    #2
    Re: Lenovo ideapad s540-13api (AMD) driver dump request

    Check this tutorial to extract a TDK bios https://www.badcaps.net/forum/showthread.php?t=80861 . The bios will be the 25LB64CSIG. You`ll need it as it will have your DMI info, serial etc .Post your bios backup .
    All donations to badcaps are welcome, click on this link to donate. Thanks to all supporters

    Comment

    • NonaHarry
      New Member
      • Sep 2020
      • 4
      • Hungary

      #3
      Re: Lenovo ideapad s540-13api (AMD) driver dump request

      Originally posted by SMDFlea
      Check this tutorial to extract a TDK bios https://www.badcaps.net/forum/showthread.php?t=80861 . The bios will be the 25LB64CSIG. You`ll need it as it will have your DMI info, serial etc .Post your bios backup .
      Thanks man, that works! The capsule is the same as I found in the laptop hard drive. Checksum matches.
      I didn't backup my old bios manually (how stupid I am). But I remember the phoenix flash tool do make a backup before flashing. Do you know where can I find it?
      Another stupid move I did is that I thought the Winbond chip is the BIOS so I flashed the capsule file into it. Is it gonna be alright?

      Thanks again

      Comment

      • SMDFlea
        Super Moderator
        • Jan 2018
        • 20745
        • UK

        #4
        Re: Lenovo ideapad s540-13api (AMD) driver dump request

        The winbond chip is 1MB - W25Q80DV: 8M-bit/1M-byte .Read it again and post the backup here. The phoenix flash tool should make a backup called bios.bin (or something) from the 25LB64CSIG (8MB bios) ,search for it and post that if you can find it on the hard drive/ssd.

        EDIT: The 25LB64C is 1.8V so you`ll need a 1.8V adapter. If the chip isn`t in your support list choose Winbond W25Q64FW
        Last edited by SMDFlea; 09-02-2020, 08:03 AM.
        All donations to badcaps are welcome, click on this link to donate. Thanks to all supporters

        Comment

        • NonaHarry
          New Member
          • Sep 2020
          • 4
          • Hungary

          #5
          Re: Lenovo ideapad s540-13api (AMD) driver dump request

          I'm not able to find the backup file. But the laptop back alive after I flash the bios file. However right now the laptop doesn't charge. The charging light does not light up when I plug in the type-c charging cable. And MTM, Lenovo SN and UUID number in the bios is "INVALID". Does these happen because I accidentally overwrite the Winbond chip?
          I have totally no idea what to do next.

          Comment

          • SMDFlea
            Super Moderator
            • Jan 2018
            • 20745
            • UK

            #6
            Re: Lenovo ideapad s540-13api (AMD) driver dump request

            The UUID,serial etc are stored in the bios,(the EC sometimes)and as you didn`t make a backup its gone.Have another look for the bios backup,it could be called bios.bak ,search through hidden files and search by the date when you flashed the bios.If you can`t find the old bios its possible you may be able to add the info back using a tool called LVAR (lenovo variable tool),if you can`t find a copy on the forum search around for it.
            The charging problem is related to the EC,see the release notes for the issue.Run the bios update again to flash the bios/EC,and check if it offers to make a bios backup,and if so,what its called,you don`t want to overwrite the older bios backup,if there is one.

            https://pcsupport.lenovo.com/gb/en/p...loads/ds541891

            EC Notification:

            [Fixed] : None

            [Modified] : Modify PD Power supply logical to fix USB type-c charge issue.(226767)
            Last edited by SMDFlea; 09-02-2020, 09:06 AM.
            All donations to badcaps are welcome, click on this link to donate. Thanks to all supporters

            Comment

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