hello, I have a samsung NP300E5C BA41-01979A where the bios chip has been tampered with, the acronym is 25L6408E I don't know if it's the right one, since they cut the pins I have to change the chip, what can I put? ... which file should I upload to the chip, thanks
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Re: samsung NP300E5C- bios problem
The bios chip used on this platform is 8MB . So you can try using 8mb,3v bios chip. There are several variant of bios. You can try with these two bioses attached. -
Re: samsung NP300E5C- bios problem
thank you very much, can I try the winbond 25Q64FVSIG?Comment
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Re: samsung NP300E5C- bios problem
if it is 8mb bios chip you can try its the same 8mb chip with 3.3vComment
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Re: samsung NP300E5C- bios problem
I tried this File Type: zip SAMSUNG NP300E5C-P03RAQ.zip (2.93 MB, 3 views) lights up but the screen is blackComment
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Re: samsung NP300E5C- bios problem
Try the bios at post #7 https://www.badcaps.net/forum/showthread.php?t=63183Comment
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Re: samsung NP300E5C- bios problem
I also tried what you told me at post n. 7 as before, turns on but the screen remains blackComment
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Re: samsung NP300E5C- bios problem
do you have any advice pleaseComment
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Re: samsung NP300E5C- bios problem
Measure voltage on all grey coils and post here. I doubt you have missing gfxcoreComment
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Re: samsung NP300E5C- bios problem
before unsoldering the bios chip that was mounted on the main, the display turned on, but the bios did not show the HD, so I thought of an error in the bios, so I'm looking for the right bin fileComment
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Re: samsung NP300E5C- bios problem
Try this bios,its the right one for your motherboard.If it doesn`t work i suspect the PCH needs replacing.Comment
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Re: samsung NP300E5C- bios problem
This bios do not work, maybe the problem it's the chip? The first it's MX25L64O8E, I ave used W25Q64FVSIG , 8Mbyte, 64Mbit, it's compatible?Comment
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Re: samsung NP300E5C- bios problem
Can you kindly tell me if the file of this bios is the same as someone you posted to me?Comment
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Re: samsung NP300E5C- bios problem
here it isComment
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Re: samsung NP300E5C- bios problem
I have the same model but NP300E5C-S02GR. Is anyone has BIOS for it ?Comment
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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
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Hello,
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But today it's not accepting my password. I'm %100 sure i'm entering the correct password.
I'm trying to reset my bios without success.
I tried :
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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
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