I am working on a Samsung Laptop NP900X4C-A01CA. The status right now is NO DISPLAY but the motherboard is drawing .75 milli amps (Amps fluctuates up & down a bit) & the CPU & the GPU even gets hot. VCORE voltages are all good & all all voltages seem to be good. Can anyone repair/fix this Original BIOS fo this laptop. Thanks in advance.
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Re: Samsung NP900X4C-A01CA BIOS
Thank you peste, will surely try today & let you know... Take care, you are a real help!!!Comment
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Re: Samsung NP900X4C-A01CA BIOS
"peste"., Not working... I think there might be another problem with the motheboard. Same status as the previous original BIOS, motherboard just stuck on .75 milli amps.Comment
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Re: Samsung NP900X4C-A01CA BIOS
A lot of the older samsung bios get corrupted NVRAM . Try merging the bios update. https://www.badcaps.net/forum/showthread.php?t=88206 .The platform ID is ABK if its the original bios.
Extract the DMI from the EVSA store using UEFITool (extract as is, just this EVSA store,not all of them) or with a hex editor 70AC00 - 70ADFF
Samsung bios extractor attached.
.Attached FilesLast edited by SMDFlea; 02-02-2022, 11:51 AM.Comment
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Re: Samsung NP900X4C-A01CA BIOS
Thanks Peste & SMDFlea.. really appreciate!!! Going to do it for the first time.. Let's see how far I can go with this. So you mean I have to Extract the DMI from the EVSA Store & drag it to the Samsung Extractor with the Original BIOS Bin Files???Comment
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Re: Samsung NP900X4C-A01CA BIOS
Thanks SMDFlea., 1st time doing this, so confusing. As I understand, 1st the original Samsung BIOS have to be extracted with the attached tool. & then extracted file need to be written onto a new BIOS chip. My apologies, did not get it, once I do it then it will be easier & even for everyone in this world. Thanks & thank you.Comment
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Re: Samsung NP900X4C-A01CA BIOS
Thanks you so much SMDFlea., when I download this BIN file which you have send me, is it already edited as I see the properties of it, & it 8MB. So I believe you have send me the edit version file??? Right? or should I delete the off-sets 0 - 1CF (length 1D0) & then this will be the correct file to be programmed on the BIOS Chip? ThanksComment
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Re: Samsung NP900X4C-A01CA BIOS
Thanks for the great explaination of how this Samsung BIOS is done & editing the BIOS for me.. Will Surely try it out today.Comment
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Working Bios for a Samsung NP900X4C
Hello all, I need a Working Bios or a Dump Bios from a Working Samsung NP900X4C-A01PT
Best RegardsComment
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Re: Samsung NP900X4C-A01CA BIOS
Thank You SMFLea, I've tried to follow the post that helps with downloading the Bios but I only get a 404 error from the server.
Here's the dump file from this laptop
Bios version and Platform ID as follows P06AAC
Thank you in advanceLast edited by Kambi13; 05-03-2023, 03:36 AM.Comment
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Re: Samsung NP900X4C-A01CA BIOS
Ok, finally managed to get the Updated Bios from Samsung sever. Now I need some guidance to make this workComment
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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,
see the donate button at the bottom of the page, or
>>>>> click on this link to donate via PayPal. <<<<<
Every donation made will go towards server fees and maintenance costs.
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Re: Samsung NP900X4C-A01CA BIOS
OMG Hardware1 it's working like a charm. Thank you so much. I was wondering if you could let me know what have you merged into the original Bios, or if you could point me out some tutorials.
Thank you againComment
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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,
see the donate button at the bottom of the page, or
>>>>> click on this link to donate via PayPal. <<<<<
Every donation made will go towards server fees and maintenance costs.
----------------------------------------------------------------------------------------------------------------------------------------------------------------------Comment
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Re: Samsung NP900X4C-A01CA BIOS
Yea I know it's not the full bios, just dont know what and where to replace itComment
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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 -
The Samsung S49CG934SU monitor does not power on - no LED indicator activity and no response to power button. However, when 21V power is connected, it immediately draws 0.8A of current with no display output. The motherboard processor gets warm, and there is continuous reading activity from the W25Q128BV BIOS chip.
Suspected Cause:
I suspect the BIOS may have been corrupted during a power interruption while updating the firmware. The official website provides firmware updates, but they can only be installed via USB flash drive.
Troubleshooting Attempts:
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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... -
This specification for the Samsung Galaxy Book 2 Notebook can be useful for upgrading or repairing a laptop that is not working. As a community we are working through our specifications to add valuable data like the Galaxy Book 2 boardview and Galaxy Book 2 schematic. Our users have donated over 1 million documents which are being added to the site. This page will be updated soon with additional information. Alternatively you can request additional help from our users directly on the relevant badcaps forum. Please note that we offer no warranties that any specification, datasheet, or download...09-07-2024, 05:50 AM
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Hello everyone,
i made out of two broken Samsung Galaxy Tabpro S one that works partially.
The one Mainboard had a broken screen output but working hdmi (usb c adapter) output and the other didnt start at all.
I switch the bios chips and now the tablet starts but very very slow and it takes some trys to get it starting.
The problem is, that the micom Version doesn't match with the bios version, see picture.
How can i update the Micom Version? The Samsung bios update wont work.
With https://github.com/tavinus/SamsungBIOSTools i could extract the newest bios update...
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