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Only the win key is in the bios. The rest is in the EC. Use lenovo U1 tool https://www.badcaps.net/forum/troubl...=5#post1622424 .You will find the latest version using the forum search -
My mistake with English. The laptop is already working on the bios file from SMFlea (#7), I transferred the windows key from the original laptop bios but I am looking for information on what data block to copy to transfer data such as serial number etc. to the new bios.Leave a comment:
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hi, Lenovo Thinkpad T450s, after turning on the computer with the button, the system goes up for one second and goes out, the current drawn is about 0.3A. The bios from this topic helped: https://www.badcaps.net/forum/troubl...450s-need-bios
I have a question: using HeX editor what should I copy from the original BIOS to transfer the serial number and Windows key to the working BIOS ?
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RULES UPDATE for BIOS requests/offers AVOID BANNING, READ BEFORE POSTING
https://www.badcaps.net/forum/troubl...before-posting
You MUST:- Provide the full machine model number, serial number (or Service tag, SNID) and the board model number (see https://www.badcaps.net/forum/showthread.php?t=88758 ) ,The serial number, make, full model number, motherboard model and revision (except QR codes) must be written/typed at your request as per the rules. Not as a picture, part of the file name and so on.
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Hello, I have a problem with Lenovo T450S which turns on when connecting the charger but does not show an image. I have tried with the bios but it did not work. I attached the original bin file.Leave a comment:
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Re: Lenovo Thinkpad T450S need bios
Read the rules before posting:
RULES UPDATE for BIOS requests/offers *AVOID BANNING, READ BEFORE POSTING*
https://www.badcaps.net/forum/showthread.php?t=103570
Password removal by laptop brand
https://www.badcaps.net/forum/showth...42#post1108842
3.7. Lenovo ThinkPad
3.7.2. DXE password bypass driver injection (2012-2018)
...Leave a comment:
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Re: Lenovo Thinkpad T450S need bios
Hi everyone,
I'm not sure whether this fits here, but I found a Thinkpad 450s (i7, no touch) on the trash. There is a supervisor password set. Does anyone have a BIOS for this version?
Best,
Anonymous40093Leave a comment:
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T450s nm-a302 Rev:1.0
Hello! Help me please. bios needed
Attached FilesLeave a comment:
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Re: Lenovo Thinkpad T450S need bios
Smdflea your bkp is works thanksLeave a comment:
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This specification for the Lenovo ThinkPad T450s Notebook can be useful for upgrading or repairing a laptop that is not working. As a community we are working through our specifications to add valuable data like the T450s boardview and T450s schematic. Our users have donated over 1 million documents which are being added to the site. This page will be updated soon with additional information. Alternatively you can request additional help from our users directly on the relevant badcaps forum. Please note that we offer no warranties that any specification, datasheet, or download for Lenovo ThinkPad...09-06-2024, 05:30 AM
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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... -
Good day. I apologize if I posted this in the wrong topic. I saw somebody selling a Thinkpad E495 with a Ryzen 3500U CPU near me. In the pictures the laptop is running windows 10. I contacted the seller and asked a few questions about upgradability and if it has a bios password on it. He confirmed it has a bios password. I searched through the forum, I found a guide regarding removing the bios password using the autopatcher, I also found a thread with the e495 where people requested help with unlocking the bios password.
I have a few questions:- If I would buy this laptop and have
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Hi!
Went dumpster-diving and found a bricked Lenovo P14S in trash, few weeks earlier. Symptoms - no screen, no POST, no beep, just keyboard LEDs flashing on powerup. Mute button+LED was responding though, and the display self-test was still working (via the key combo Ctrl+Fn+Power held for some seconds, see the Service manual).
Incidentally, Windows 11 have recently started auto-flashing computer BIOS in our region. Even more suspiciously, Lenovo has released a BIOS update just few days before the PC was trashed. About a week later, the BIOS update image has been oficially marked...04-14-2025, 01:56 PM -
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....
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