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:
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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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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 -
Hello everyone,
I recently bought a non-working Asus Zenbook Pro Duo OLED UX8402ZA that was listed for parts only. The seller mentioned that it had no display output but that the charging lights worked.
When the laptop arrived (without a charger and SSD), I connected a charger and confirmed with a multimeter that it was charging the battery. However, when I tried to power it on, only the backlight of the secondary display came on. There was no image, and it didn’t boot into the BIOS.
I decided to try flashing a new BIOS, but since I didn’t want to desolder... -
First of all thanks to all of our members who have posted previously all methods posted here.
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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,...
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