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Hello everyone! I'm in big trouble!
Legion Y540-15IRH Laptop (Lenovo)
I need help when booting into bios the keyboard works normally, but when entering Windows the computer loses connection and the keyboard cannot use any keys. Please help me edit this bios fileComment
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Due to a lack of donations, server free space at a critical level, and possible closure of Bios Requests all donations are welcome, click:
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Hello everyone! I'm in big trouble!
Legion Y540-15IRH Laptop (Lenovo)
SN :FY515/517/517/518
FY523/524/525/526
NM-C221 Rev 2.0
I need help when booting into bios the keyboard works normally, but when entering Windows the computer loses connection and the keyboard cannot use any keys. Please help me edit this bios file
Attached FilesComment
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Any donations to badcaps are welcome, click this link to donate . Thanks to all the supporters
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Size must be in MB after compression.
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Any donations to badcaps are welcome, click this link to donate . Thanks to all the supporters
https://www.badcaps.net/donateComment
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Hi guys, I'm relatively very new to this bios flashing and I accidentally flashed a different Vbios in my laptop following which the gpu got bricked and there is no posting in my laptop. I'm trying to flash different bios files from this thread for flashing the legion y540 15IRH, however, the laptop display isn't posting anything. Can anyone help me in guiding the proces?Comment
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Model - Lenovo Legion Y540-15IRH 81SX
S/N - PF1DWQR4Comment
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Any donations to badcaps are welcome, click this link to donate . Thanks to all the supporters
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Hello, I have exactly the same problem, no image and after some time the fans are on full speed, BIOS programming did not help, has anyone managed to solve this problem?Comment
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Due to a lack of donations, server free space at a critical level, and possible closure of Bios Requests all donations are welcome, click:
>>>>> https://www.badcaps.net/index.php?pageid=donate1 <<<<<
Every donation made will go towards server fees and maintenance costs.Comment
you are the best <3
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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 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.... -
Hi everyone,
My Lenovo Legion Y540 (i7-9750H, RTX 2060) bricked after I downgraded from BHCN44WW to BHCN21WW.
Laptop stopped booting entirely.
I used a CH341A programmer to dump the corrupted 16MB BIOS.
i then attempted the following:- Downloaded stock BIOS BHCN39WW from Lenovo
- Trimmed it to 16MB
- Extracted the BIOS region from the corrupted dump
- Extracted the BIOS region from the stock 39WW
- Replaced the corrupted BIOS region with the stock one (within hxd , opened the corrupted dump and replaced its region by the stock)
- Injected back my LDGB / DMI
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Hello there.
I am working on a Lenovo Legion T5-26AMR5 desktop that currently has a corrupt BIOS and I have been unsuccessful thus far in trying to fix it myself.
History:
1. This computer came to me initially with an error message that said "BiInitializeLibrary failed 0xc0000001" or "0135 fan error". It would always be one of the two errors. It should be noted that when it produced the fan error, there was no physical problem with the fans. They were all spinning just fine.
I searched for this error online and discovered... -
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...
Comment