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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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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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 Filesif you find these attachements useful please consider making a small donation to the site
Last 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.
----------------------------------------------------------------------------------------------------------------------------------------------------------------------Comment
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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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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 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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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
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Hi all,
My Samsung Galaxy Book 2 Pro 15.6-inch laptop has no display and won't boot.
The charging red LED lights up, but the charging screen doesn't show any indication.
When I press the power button, the blue LED cycles on and off three times, then the screen doesn't turn on, and the device won't boot.
(I've tried removing the battery and resetting the device, but the issue persists.)
NoteBook Model name : Samsung NT955XED-KK51G(Galaxy book2 pro, i5-1240p, 15.6inch AMOLED)
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S/N : 5RNK9FFT70...
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