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All donations to Badcaps are welcome.
Become a Badcaps supporter
>>>>> click on this link to donate <<<<<
Thanks to all supporters.​
----------------------------------------------------------------------------------------------------------------------------------------------------------Doctrina est fructus dulcis, radicis amarae..Comment
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Re: ThinkPad L450 _ NM-A351 BIOS Password Unlock
AUTOPATCHER is not working on this Lenovo laptop!
here is a solution to unlock L450 BIOS.
For safety reasons make dump backup and take care during security chip shortening. Make also picture on bios SERIAL number and so on (just push enter when as for password to go inside locked BIOS).
1. Prepare something to short circuit SDA and SCL line of security chip.
2. Remove hard drive.
3. Switch on laptop and immediatelly shortcircut this 2 lines, as on picture.
4. When laptop will show error with laptop serial and so on take press F1 to enter to the bios. Take out shortening tool. Don't worry if you won't see serial number and so on for now.
5. Go to supervisor password and just press enter two times to save empty password.
6. Go to last page and click SAVE & EXIT.
7. Switch off laptop and then switch back on, push enter and then F1 to go to BIOS and VOILA. Password has been deleted. Laptop serial data shall be returned.
Say thank you if this helped
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Last edited by rbvndonh; 05-09-2023, 01:44 PM.Comment
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Need Help to Unlock BIOS Password For Lenovo ThinkPad L450 NM-A351
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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 -
Hello, I have an old Dell G3 3579 (ST: 2WQ7LP2-8FC8) with a newer 8FC8 BIOS password. I have successfully attached to the flash chip (W25Q128JVSQ) on the motherboard with a CH341A programmer and made several modifications using Intel FIT (e.g., allow software SPI write) without bricking. I was also able to boot to a modified GRUB shell where I attempted to edit many BIOS security related options like BIOS Guard/Lock, Flash Signature Override, ME FW Image Re-Flash, etc.
Unfortunately, some of these modifications like to Intel BIOS Guard failed because it is fused into the PCH. Also,... -
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...
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