BIOS for blind flash Yoga 7 14ACN (82N7) 5800U

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  • xiongnemo
    New Member
    • Apr 2024
    • 4
    • Australia

    #1

    BIOS for blind flash Yoga 7 14ACN (82N7) 5800U

    I misconfigured my UEFI settings and it now won't POST. Removing CMOS battery is of no use. I tried to put BIOS.fd in and use Fn + R to blind flash, but also no use. The charging light just flashing amber while ESC and CAPS LOCK turned off and on every 5 or maybe 7 times when charging light flashes. I wonder whether my extraction from Lenovo website suits this occasion and if not, maybe someone of you will have one?
    Many thanks!
  • SMDFlea
    Super Moderator
    • Jan 2018
    • 22142
    • UK

    #2
    RULES UPDATE for BIOS requests/offers AVOID BANNING, READ BEFORE POSTING
    https://www.badcaps.net/forum/troubl...before-posting

    All donations to badcaps are welcome, click on this link to donate. Thanks to all supporters

    Comment

    • xiongnemo
      New Member
      • Apr 2024
      • 4
      • Australia

      #3
      Sorry for the inconvenience!

      MO: PFNNXB1531076
      S/N: PF2YJWP8 (Chinese Version)
      MB P/N: 5B21C81146
      On the same label with MB P/N: 885B21C81146L1HF15PB0DZ
      '46J SN TXT Code; on MB: 15414038004384511GK1210G HYG40 10D2
      BIOS Chip seems to be 74M12JWSIQ

      Comment

      • xiongnemo
        New Member
        • Apr 2024
        • 4
        • Australia

        #4
        In my estimation, the issue should be resolved either with a successful blind flash or resetting the nvram after I manage to get a dump of the original chip.

        Comment

        • trunguntilyou
          Badcaps Veteran
          • Aug 2022
          • 367
          • Vietnam

          #5
          please i need bios full power status no image
          yoga 7 14ACN6 82N7
          nm-d771
          sn : PF3BCM55
          Attached Files

          if you find these attachements useful please consider making a small donation to the site

          Comment

          • peste
            Super Moderator
            • Dec 2016
            • 13785
            • ROMANIA

            #6
            Originally posted by trunguntilyou
            please i need bios full power status no image
            yoga 7 14ACN6 82N7
            nm-d771
            sn : PF3BCM55
            bios extracted from Lenovo website update for Yoga 7-14ACN6
            DMI 5BC000 - 5BDFFF
            Attached Files

            if you find these attachements useful please consider making a small donation to the site

            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

            • trunguntilyou
              Badcaps Veteran
              • Aug 2022
              • 367
              • Vietnam

              #7
              Originally posted by peste

              bios extracted from Lenovo website update for Yoga 7-14ACN6
              DMI 5BC000 - 5BDFFF
              Status unchanged ,,, AMD probably has an error

              Comment

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