Share via

Critical: BIOS Supervisor Password Corrupted by Windows Update V2222 - Lecoo N176A (Case [Moderator note: PII removed])

think now 0 Reputation points
2026-04-07T02:26:45.5866667+00:00

IMG_20260325_0311534

Summary: I am seeking technical assistance regarding a BIOS/UEFI security lockout caused directly by an automatic Windows Update. After the installation of firmware version V2222, the Supervisor Password logic in the NVRAM has been corrupted.

Device Information:

Model: Lecoo Bellator N176A (AMD Ryzen 9 8940HX)

  • Corrupted Firmware: LecooN176A - Firmware - ????? (BIOS V2222)

Update Date: March 25, 2026 (via Windows Update)

Microsoft Support Case ID: [Moderator note: PII removed]

The Issue:

Windows Update pushed the firmware update automatically.

Immediately after the reboot, previous BIOS passwords were wiped.

  1. Upon setting new passwords: The User bios Password works, but the Supervisor bios Password is rejected as "Invalid" every time I enter it, despite being certain of the characters.
  2. The system still boots into Windows 11 normally, proving the hardware is functional, but the UEFI NVRAM synchronization for security settings has failed.

Technical Analysis: This appears to be a synchronization failure between the Windows UEFI Capsule Update mechanism and the Physical Presence Interface (PPI) logic on the motherboard. The update has caused a "Logic Lock" where the BIOS fails to verify the Supervisor credentials it just stored.

Request for Assistance: As Microsoft Support (Case [Moderator note: PII removed]) has confirmed this update was delivered via Microsoft servers, I am looking for:

  1. A software-based method (via PowerShell or a specific Windows-based tool) to trigger a PPI reset or clear the corrupted BIOS flags.
  2. Technical documentation or the Update Manifest for this specific firmware to provide to the OEM (Lenovo).
  3. Any known workaround for NVRAM corruption issues related to InsydeH2O BIOS updates pushed through Windows 11.
  4. Is it possible to reinstall v2020, overwriting and erasing the BIOS password? Can Lecoo provide a newer version that allows overwriting and erasing the BIOS password?

Link driver from Lenovo/Lecoo: https://iknow.lenovo.com.cn/detail/429447

THANK YOU!

And Lenovo/Lecoo is not supported in my country.

:)

User's image

Windows for home | Windows 11 | Windows update
0 comments

1 answer

Sort by: Most helpful
Most helpful Newest Oldest
  1. Lychee-Ng 17,835 Reputation points Microsoft External Staff Moderator
    2026-04-10T12:57:47.3866667+00:00

    Please note that our forum is a public platform, and we will modify your question to hide your personal information in the description. Kindly ensure that you hide any personal or organizational information the next time you post an error or other details to protect personal data.

    Hi think now,

    I understand how frustrating it is to lose BIOS Supervisor access after an automatic firmware update, especially when the system itself still boots fine. Thank you for providing insights from your Support case. There are a few things I need to be clear about this situation:

    • While the update was delivered via Windows Update, firmware correctness is the OEM’s responsibility. Microsoft does not validate BIOS password logic.
    • There is no PowerShell command, Windows tool, or software workaround that can clear or repair a broken Supervisor password.
    • Windows cannot write to protected BIOS password regions after POST. Any tool claiming to do this would be unofficial.
    • Downgrading or reinstalling the BIOS is blocked when a Supervisor password is present, even if it’s corrupted.

    Basically, once the Supervisor password state is corrupted, you cannot do anything from Windows. The only supported fix is an OEM‑provided BIOS recovery / unlock, or motherboard service. If Lecoo/Lenovo cannot provide a recovery image or unlock procedure, hardware service is unfortunately the last option.

    I know this is not the answer you were hoping for, but this situation is serious and should not be treated as a self-troubleshooting issue. Microsoft Q&A is just a user-to-user support forum, the actual resolution depends on OEM support.

    If the answer is helpful, please click "Accept Answer" and kindly upvote it. If you have extra questions about this answer, please click "Comment".

    Note: Please follow the steps in our documentation to enable e-mail notifications if you want to receive the related email notification for this thread.

    0 comments

Your answer

Answers can be marked as 'Accepted' by the question author and 'Recommended' by moderators, which helps users know the answer solved the author's problem.