Turns on and shuts off NUC8I7HNK4 need a BIOS

[it-solve]

It's not Mac-related but I am out of ideas and don't know where to turn to.

Seems like we are dealing with a case of a corrupted BIOS after Intel Driver software attempted to flash the bios (haven't seen that before). The customer reported seeing a BIOS message while the screen was flickering during the Intel Display Driver installation. This was while the BIOS WRITE lock jumper was in place. Resulting in Loop restarting.

Afterwards, the customer attempted flashing BIOS via a USB stick, resulting in turning and immediately shutting down unit NUC8I7HNK4.

Under the thermal cam, I can see that the CPU is initiating a heat signature for a second before it switches off.

There are two bioses in this model. There is also 3rd bios that is directly connected to the USBC chipset, so I am assuming that is not relevant to this case.

NUC8I7HNK4 W25Q128JV SYS_SPI
NUC8I7HNK4 W25X40CL GPU_SPI

 

[2informaticos]

SYS_SPI chip is the one you need to read/write.

No way to start USB BIOS update with F7?
Intel provides a file for this purpose.

 

[it-solve]

It just blinks and switches off. I can't reach stable on state.

 

[2informaticos]

Then remove mentioned chip and post backup here.

 

[it-solve]

I uploaded both backups, seems like one got lost. Here is the SYS_SPI one

Ah cant upload 5MB. That explains it - Here is the onedrive link - https://1drv.ms/f/s!AqUpFIbofx3Hl-odaaP1trHXA1jQNA?e=YSVYgm

 

[2informaticos]

First file is a mess.
Can't be opened with ME Analyzer, or Intel FIT.

ME Analyzer adverts about data corruption in the second file.
So you have BIOS problem for sure.
Couldn't find any working full BIOS to download from Internet?

 

[it-solve]

Not for this model. Any suggestions where else to look?
Happy with paid sites as well


This site has 2 dumps, can we rebuild based on them? - https://winraid.level1techs.com/t/request-nuc8i7hvk-bios-fix/38143/7

 

[2informaticos]

They didn't specify the exact model of NUC machine in that thread.
Cleaning ME region is easy in your case, but the BIOS region is where you have the problem located.
What you need is packed into Intel .BIO update file.

Just for test, give a try to this file from NUC8i7HNK2; not sure if good however.

NUC8i7HNK2 backup.rar

drive.google.com

BTW, did you try this?

How to Recover an Intel® NUC BIOS, using the Aptio® V UEFI...

Steps required to recover the BIOS using the BIOS security jumper.

www.intel.com

Some more information found on Internet, but I don't really have time to insist more on that.

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[Guide] Clean Dumped Intel Engine (CS)ME/(CS)TXE Regions with Data Initialization

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An online translator my help you with this:

Собираем образ BIOS из EFI-капсулы или "Как вынуть из интеловского файла бинарник для прошивки на программаторе?" | ROM.by

www.rom.by

 

[it-solve]

ok, so flashed the backup and there is some progress. The light comes on 1 second and goes off, then comes back on again it stays on for about 5 seconds and shuts off. Compared to less than a sec before. No keyboard or monitor activity though.


Tried the USB method to recover but is not staying on nor USB activity before and after flash of the bios.

 

[2informaticos]

Take your time and check all links I've sent you.
You should be able then to build new BIOS region from Intel .BIO update file.