Hi there i need bios for this board gs557-gs558 NM-681 its lenovo. I dont have the old dump, eeprom is dead. The bios file is 16m. Thanks
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Re: Bios gs557-gs558 NM-681
post the serial number please -
Re: Bios gs557-gs558 NM-681
Here mate sn:PF2AZ85AComment
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Re: Bios gs557-gs558 NM-681
Hello guys, I got a Lenovo GS557 GS558 NM-C681 Lookin for working BIOS, I got 2 dumps from the 2 ICs, Ill Post em
Basically I plug it in and go to 75ma straight, I push the power button and stay on 75ma and the led flashes 12 times it drops to 0ma and then 75ma again and 12 led flashes again, I have not found any info on that led code whatsoever and I suspect maybe EC or BIOS, tried the from post #4 but same result
Any ideas? thanks!Comment
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Re: Bios gs557-gs558 NM-681
forgot to upload the files
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Re: Bios gs557-gs558 NM-681
Actually I am not sure one of the dump is the EC, may be the EC BIOS? It's about 1MB, the other one is about 16MB and most certainly the actual BIOS, I have not been able to find another dump to test it and see if that fixes the issueComment
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Lenovo IdeaPad 5 15IIL05 GS557 GS558 NM-C681 bios
Hi
i Need this bios
Lenovo IdeaPad 5 15IIL05 GS557 GS558 NM-C681 bios
thanksComment
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Re: Bios gs557-gs558 NM-681
Hi, every one
I need bios Lenovo GS557 NM-C681
Thank advance
my old biosComment
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Re: Bios gs557-gs558 NM-681
Hi, I have Ideapad 5 15iil05. When powering on, the keyboard lights up, the charging light comes on and charges the battery, I can hear the fan spinning. However, keyboard is non-responsive, no video display and no backlight. After a while, the notebook turns off, then repeats the same cycle. I suspect the BIOS is corrupted. Please, help me rebuild the BIOS.
Serial# PF2F03RT
BIOS chip: Winbond 25Q128JVS0
Mobo# GS557 GS558 NM-C681 Rev 1.0
Thanks.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
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Re: Bios gs557-gs558 NM-681
Computer is working now just fine. Thanks.Comment
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i have a corrupted bios can somebody please fix it..
Serialnumber IS PF29YZ17
ive added the corrupted bios file
thank youComment
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Mọi khoản quyên góp cho badcaps đều được hoan nghênh, hãy nhấp vào liên kết này để quyên góp. Cảm ơn tất cả những người ủng hộ----------------------------------------------------------------------------------------------------------------------------------------------------------------Comment
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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 -
First of all thanks to all of our members who have posted previously all methods posted here.
Please leave a comment if you find something new,or have anything else to add.
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Find by serial number,model number or series
If you know the laptop serial or model number go to HP support https://support.hp.com/us-en/drivers/laptops .
Enter the serial number or model number and click submit.On the next screen you will have to enter the OS
Operating system and OS version.If... -
Hi, my laptop wont boot at all
With original bios no POST, only LED lights
With alternative BIOS from model TP500LN (flashed via programmer) the notebook works again
Some issues
A- with bios from 500LN, it won't update from bios of model 500LA (from 500LN v203 to 500LA v300)
B- If updated from 500LN version 203 to 300, the battery stops being recognized
Things I tried
1- Update / clear ME: Took the non working bios, made a backup, and did this: https://www.badcaps.net/forum/troubl...theory/trouble... -
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,... -
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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