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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Hello everyone,
I am requesting urgent assistance to unbrick my laptop, a rebranded TongFang GK7MRFR chassis. The laptop is completely dead following a faulty in-OS EC flash attempt.
I have successfully used a CH341A programmer and can read/write/verify both flash chips, but using my backups/extractions has failed to restore power. The root cause is likely a corrupted Intel Management Engine (ME) region or an incompatible EC/BIOS pairing. System & Hardware Details- Barebone / Chassis: TongFang GK7MRFR
- MB: MB: GK5MP5X V1.0 Prod :GK5MRFV10T04201310281
- Rebrand: PC Specialist
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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 -
After installing Linux, I can no longer enter the BIOS of my Samsung Series 9 (NP900X3C) laptop. When pressing [F2] during boot I simply get a black screen. Same thing when pressing [F10] and choosing "Setup" from the "App Menu" tab. Apparently this is a relatively common issue with Samsung laptops of that generation, but unfortunately i haven't been able to resolve the issue (yet).
Things i've tried so far; reinstalled Windows 10, checked for redundant boot entries, tried to factory reset using the emergency keyhole, attempted to clear the NVRAM by physically...08-01-2025, 09:15 AM -
Hello. I am asking you for a hint on how to solve the problem with my touchbook Panasonic CF53-2 standart model. After setting up the BIOS, the laptop displays the wrong image until Windows loads. (More precisely, it displays, but distorted, instead of the Panasonic image immediately after turning it on, it displays what is in photo #1 in the attached file) Then the image appears when Windows starts loading and then there are no problems with the screen until the reboot. If you enter the BIOS, just a black screen. If you connect an external screen, the image on it is the same as on the built-in... -
Hello,
I'm using TONGFANG "GM7TG7P" model laptop for over 3 years and i'm entering the same bios administrator password everyday. My laptop has Aptio BIOS (American Megatrends, AMI).
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 :
-I removed the BIOS battery and main battery. Waited for a long time but it didn't work. They already stated in the user manual that the password will not be reset even if the batteries...
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