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Re: bios repair FL490/FL590 NM-B931
Post your problem here : https://www.badcaps.net/forum/forumdisplay.php?f=23↵
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Re: bios repair FL490/FL590 NM-B931
Sorry if this like a thread hijack , please allow me to ask if the shared files on this thread is can be use on Thinkpad L490 ?
sorry again . thanksComment
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Re: bios repair FL490/FL590 NM-B931
1. How to dump and flash
https://www.badcaps.net/forum/showpo...40&postcount=2Comment
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Re: bios repair FL490/FL590 NM-B931
Hi Everyone. I have a Thinkpad L590 with a Winbond 25Q256JVEQ bios chip. The serial is PF-1YGGLK. Machine: 20Q700ALUK. Bios installed prior to issues was ROZET53W (1.31). The issues started happening when I was trying to make it into hackintosh and one of the steps required reset of nvram. After that it was blank. I was able to get the chip off motherboard and save the attached corrupt bios.
Hope this info helps.Comment
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Hello everyone, could someone help me to clean these files from password?Comment
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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.
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Hello, i had the same issue, tried making a hackintosh, resetted the nvram and the screen went blank, i've flashed this bios, the laptop started working but it is booting very slow and audio doesn't work (in windows, Intel smart sound OED, code 10 FW did not sent FW Ready notification).
Lenovo ThinkPad L590 with i5-8365u vPro
Serial number: PF1W2L93
Machine number: 20Q8-S20E00
Bios version before issues: R0ZET57W 1.35
Bios chip: Macronix MX25L25673G
Here's my original bios after resetting nvramLast edited by Mcnick 3; 03-14-2024, 04:37 PM.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 -
looking for a fully extracted (by programmer) Bios for a Dell Inspiron 17 (7786) v.1.09 or newer, so I can compare it with my own bios to check for corruption.
cheers
Dell Inspiron 17 (7786) Laptop
Service Tag: 5J0NHT2
Bios: 1.9.0
MOBO: RO 15 17 WHL 2GB MB / 18706-2
Attached;
1. My saved bios using a programmer
2. Dells Bios updater .exe (v1.16)
3. Dells Bios recovery file
4. What I got when i tried to extract the main bios .bin file from Dells Bios v1.16 exe/rcv using some .py script i found online.
5. Image of ME... -
Hi all,
as subject line says, I have a laptop that reboots after 30 minutes. Investigation leads me to believe that is due to intel ME as it happens everytime after 30 minute from boot, it just turns off, no overheating, nothing weird.
I found a lot of information about cleaning ME like this https://winraid.level1techs.com/t/gu...lization/31277 and this https://github.com/corna/me_cleaner
Anyway, first step is to dump the bios. I found the Winbond W25Q64FV chip on the motherboard, dumped it with flashrom over... -
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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