advanced bios on lenovo yoga pro 7 gen9

Collapse
X
Collapse
 
  • Page of 1
  • Time
  • Show
Clear All
new posts
Previous template Next
  • Fireman1
    New Member
    • Jun 2024
    • 1
    • Germany
    #1

    advanced bios on lenovo yoga pro 7 gen9

    Hi Team, iam newbie

    pls help me to unlock bios to advanced
    maybe possible per hotkeys?

    I couldn't find a password prompt to unlock it

    Yoga Pro 7 14IMH9
    SN:YX0A9V0Y
    Model:83E2005VGE
    Mainboard: LNVNB161216
    BIOS Version: N9CN25WW
    EC Version: 1.25
    Tags: None
    Previous template Next

    Related Topics

    Collapse
    • to5it0
      Need Clean BIOS/EC Bin File for Lenovo ThinkPad Yoga 11e 2H1703-27220F Rev. A Marked as U2501 on the motherboard.
      by to5it0
      Need Clean BIOS/EC Bin File for Lenovo ThinkPad Yoga 11e - Stuck with 0275 Error CMS

      Hello everyone,

      I am attempting a repair on a Lenovo ThinkPad Yoga 11e that is currently stuck at boot with the error: "0275 error CMS" even after setup new bios battery and will not allow me to enter the BIOS/Setup.

      This is a critical issue that I believe requires flashing the BIOS chip directly using a programmer (e.g., CH341A/RT809H), as standard software updates or resets are not possible.

      I have opened the laptop and identified the main BIOS chip...
      2 Photos
      10-24-2025, 01:35 AM
    • maeson
      BIOS Request - Lenovo Yoga L13 Gen3 (AMD)
      by maeson
      Hi dear Badcaps-Community,

      Somehow an auto update, which I triggered before I left my laptop unattended, bricked my BIOS.
      I was able to extract the 2MB BIOS and 16MB BIOS which I will attend. (CH341B black with NeoProgrammer 2.2.0.10)

      The Device is a Lenovo Yoga L13 Gen3 and I was able to identify the following specifications:

      Lenovo Yoga L13 Gen 3 AMD:
      Lenovo Modell: Type 21BB
      Artikelnr.21BB006GGE
      Seriennummer: PW0A6207
      AMD Ryzen™ 5 PRO 5675U
      Memory 16 GB DDR4-3200MHz
      SSD: 512 GB SSD, M.2 2242, PCIe Gen4, TLC,...
      10-31-2025, 03:08 AM
    • lucaszmn
      Summary of BIOS Whitelist Removal Problem Lenovo Thinkpad T560
      by lucaszmn

      Summary of BIOS Whitelist Removal Problem


      Problem:
      I am attempting to remove the WWAN card whitelist from my Lenovo ThinkPad T560.
      Initial Findings:
      • My current BIOS version is N1KET58W (1.45).
      • I have a CH341A programmer and have successfully created two full backups of my BIOS.
      • I have the ability to use command-line tools on a Linux machine.
      Troubleshooting Steps & Conclusions:
      • I attempted to use several automated and manual patching methods on my N1KET58W (1.45) BIOS, including using hex strings. These attempts all failed.
      • I concluded that the
      ...
      08-12-2025, 03:01 PM
    • AYsys
      Lenovo Yoga X1 Gen4 - Faulty Bios or what is going on?
      by AYsys
      Hello dear forum members,

      I own two Lenovo Yoga X1 Gen 4 laptops. One of them had a touchscreen problem, and I tried to fix it by externally flashing the BIOS. Unfortunately, I didn’t save the original BIOS and accidentally flashed it with a faulty one. After that, the device stopped working completely.

      I then had the idea to make a BIOS backup from the other Yoga X1 Gen 4 (same hardware) and flash it onto the non-working device.
      Nothing was flashed here — the BIOS was only backed up.

      I created the backup using a CH341A Black programmer and NeoProgrammer....
      09-13-2025, 11:05 AM
    • Wahaz
      Lenovo Thinkbook 15 G2 ITL i5 (serial number: MP2BFZEF) bios request
      by Wahaz
      Hello,

      I have a Lenovo Thinkbook 15 G2 ITL i5 Laptop (serial number: MP2BFZEF) that when I turn it on, the led on the power button lights up for 5 seconds, then goes out. There's no display and nothing happens.
      So I thought it was a Bios problem.
      I found 3 bios chips on the board, which I read with a bios programmer: two XMC model bios chips and a Winbond model bios chip. Each XMC model bios chip has two partitions named XM25QH128A [3.3V] and XT25F128A [3.3V]. And the Winbond model bios chip has three partitions named W25Q80BL 3.3V, W25Q80xV 3.3V and W25Q80DV 3.3V....
      10-30-2023, 08:42 PM
    • Loading...
    • No more items.
    Working...