Hi, can Everyone fix my Bios? after Biosupdate black screen.
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Type and post your serial number, and the full laptop model number https://www.badcaps.net/forum/troubl...before-posting -
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Try this rebuild bios file and provide feedbackComment
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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... -
Hi everyone,
I’m working on a non-booting HP Envy x360 2-in-1 laptop and need verified firmware dumps for both the main BIOS and EC chip. I’ll be posting my own backups for reference and comparison.
🔍 System Details- Model: HP Envy x360 15-fe0053dx
- Product Number: 7HVO3UA#ABA
- Build ID: 23WW2GQZ6D
- Motherboard: JPR50 LA-M794P Rev: 1.0 (2023-03-03)
- Motherboard SPS: N30979-ABA
- LCD SPS: N49271-601
- Date Code: 172380
- Keyboard Type: 0
- Feature Byte:
3XeB7kN7.Ba.aqewkwBiBVuhcbdxYPgB
hZnp.praepq0Md4qkdf
🔧 Chip Info- Main BIOS chip: Winbond W25Q128JVSQ
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