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Please help remove bios password
Serial Number : PF-2GH800Comment
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Hello hoaca388
Sorry for being late to the party.
I'm having a problem with my BIOS. While trying to unlock the supervisor password, I damaged it and want to repair it. I don't know if it's related to the CH341A. I used to do this years ago when I was a student, but I'm rusty, and it involved other software. Can you help me with the BIOS and know how to reprogram the IC?
t14 gen1
uefi bios version : N2XET42W (1.32)
machine type model: 20S1SD9D00
System-unit serial Number: PF2Y3BN5
System Board Serial Number: L1HF15S048VComment
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Hello guys, I'm new here so please excuse my clumsiness, but I need the BIOS file for my ThinkPad T14 Gen 1. It was updated, but an error occurred halfway through and it's now hard-bricked.
Here are the details:
SN: PF2THSDV
Model: 20S1SFJH00 Intel SOC
This is the only thing I'm missing to save my laptop because the programmer is already on its way.
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Well, thanks for responding. When I have the OS reader and programmer, I'll provide the content. Do you have any recommendations? Is this adapter viable, or do I need another one? And, besides, this is the BIOS chip, right?"Comment
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Hello, please help, I have a Lenovo T14 Gen1, with all the voltages, but no image
Sn: PF-19N6ZD
Type: 20S0-OO32USComment
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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... -
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.
- 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 -
Hi everyone.
I have an engineering sample of a Lenovo ThinkPad X1 Carbon 11th Gen (TYPE 21HM-2FVT05, S/N PF-40G7CD) with an Intel Core i7 1360P (ES – Intel 0000). Since this is an engineering sample, the BIOS had a massive number of various settings. One day, I was experimenting with the BIOS settings and, after saving them, the laptop stopped booting and played a melody after pressing the power button, signaling error code 0002 (Internal bus error), just like in this post: https://www.badcaps.net/forum/troubl...shooting-lapto... -
Hello everyone,
First, the data in brief:
Manufacturer: Lenovo
Model: ThinkPad L15 G3 21C3-0016GE
motherboard: LG4 LT5 ADL RT UMA MB 8L - 448.0PZ26.0011
IC Bios 1: MX77L25650F
IC Bios 2: MX25L25673G
EC Chip: NPCX997KAABX
So far I've been a silent reader, but now I need your help
I bought a laptop. The seller said the bios was locked. I was looking for a way to remove this ban.
I then got the CH341A and pulled the corresponding files from here https://www.badcaps.net/forum/troubl...evices-and-ele... -
Hello everyone,
I’m currently working on a dead MSI GP75 Leopard (MS-17E71) motherboard (i7 CPU, NVIDIA GPU) with a no display/no backlight issue initially. After extensive investigation, I’m at a critical stage involving EC firmware, BIOS/ME region interaction, and possible deep corruption. I'm seeking advanced insight from anyone with experience in EC/BIOS sync issues or PCH-level behavior. Here’s a full breakdown:
🧩 Initial Issue- Board powers on (fans spin, keyboard lights up and can be adjusted, caps lock led lights), but no display or backlight
- External display (HDMI) shows
07-24-2025, 02:17 PM
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