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...

I'm trying to extract a flashable bios file(ch341a) from the lenovo bios executable download. I have tried the instructions from this site https://starkeblog.com/lenovo/uefi/2...pdate-exe.html, which are not working. According to those instructions, after issuing the command it should create an \app folder, inside which, I should find a newly created "7wcn38ww.exe" file. I should then be able to extract that using 7zip and find my .FD file.

The trouble I'm having is that I'm not getting the newly...

Hello,

I got a Lenovo ThinkStation P520 (Type 30BF) from a friend, asking me for a repair. Windows 11 offered a firmware upgrade as an optional update, and it failed.
The emergency flash procedure from the hardware manual has also failed. So, I asked an acquaintance with better skills to flash the BIOS directly.

However, the chip (a Macronix MX25L25673GMI-08G) has a size of 32 MB, and the BIOS file from the Lenovo website (extracted with UEFITool) has a little more than 16 MB. Thus, the software my acquaintance used (SiberiaProg v1.45, with a CH341A Programmer)...

Lenovo IdeaPad 3 15ADA05 (81W1) — cannot enter BIOS, system always boots in Legacy mode

Hello.

I’m trying to diagnose a Lenovo IdeaPad 3 15ADA05 (Model 81W1).

Hardware

Model: Lenovo IdeaPad 3 15ADA05 (81W1)

BIOS version: E8CN34WW

Internal drive: NVMe SSD (detected normally)

Symptoms

BIOS Setup is almost impossible to enter.

Pressing F2 during power-on usually freezes on the Lenovo logo or is ignored.

The Novo button opens the Novo Menu, but selecting BIOS Setup...

Hello Everyone,

I have a Lenovo Slim 7i 14IMH9 that got stuck in a boot loop with black screen after a failed BIOS update through Lenovo Vantage.

Here are my laptop details:
- Model: Lenovo Slim 7i 14IMH9
- Serial Number: YX09M0K7
- Machine type: 83D80003US

**Problem:**
About two weeks ago a BIOS update for this laptop failed and the laptop has been stuck in a boot loop with black screen ever since. Now when I press the power button, the keyboard lights come on and the fan starts running. However, the screen remains black. The laptop...