Perform BIOS update before OS loads using F7 and USB flash drive. How to Update Intel NUC BIOS using Windows* based Express BIOS installer Perform BIOS on Intel® NUC using Windows* based Express BIOS utility. Customize any BIOS settings, if desired (optional).Press F2 during start to enter BIOS Setup.A USB on the NTFS format will not work.Īfter any BIOS update, Intel recommends the following steps: If using USB flash drive for the BIOS update or recovery, format it to the FAT32 format.Intel suggests the process be done in an environment with a steady power supply (preferably with UPS). If a BIOS update process is interrupted, your computer might not function properly.Make sure to select the correct BIOS files for your Intel® NUC. All images in the examples used in the instructions are for illustration purposes only.An earlier BIOS version may not include support for bug fixes, critical security updates, or support the product revisions currently being manufactured. Downgrading the BIOS to an earlier version isn't recommended.Note: PDF files require Adobe Acrobat Reader* Update instructions are also available in PDF format.īIOS Update Instructions for Intel® NUC with Intel® Visual BIOS (PDF).All BIOS update files for Intel® NUCs are available on Download Center.See BIOS Update and Recovery Instructions for Intel® NUCs With Aptio 5 BIOS for these instructions. Now that we have a stripped image we can flash it back (and hope that everything works well).Before Proceeding: If your Intel® NUC product was shipped after 2019, your system may use different methods to update the BIOS. Rebuild coreboot selecting ifd_shrinked.bin as IFD_BIN_PATH, me_shrinked.bin as ME_BIN_PATH and increasing CBFS_SIZE accordingly and flash the resulting image. me_shrinked.bin, a modified Intel ME image, truncated to fit in the ME region of the new layout.ifd_shrinked.bin, an Intel Flash Descriptor with the new layout.out.bin, a flashable full image with the original layout (which we don't need).To this new one, where the BIOS region is 4.9 MB bigger than before. This means that me_cleaner has modified the original descriptor with this layout If you have flashrom in your distribution's repositories you can download it from there (for example on Raspbian, you can just get it with sudo apt-get install flashrom, otherwise you can download and build it (see here for more info): If the chip is socketed (which happens quite often in the desktop boards), you can buy an identical chip and keep the original one as "fallback", in order to have a backup solution in case something goes wrong. The other two are more complex, and you have to find a solution to connect your chip to the programmer. The first two are easy to manage, as you can buy for cheap a SOIC clip, a DIP clip or some SMD clips (if you want something more versatile). Usually the ROM chips are in the following packages: Good knowledge of the SPI chips and programmers.A way to connect the ROM chip with the board (DIP/SOIC clip, SMD clips, socket in case of a detachable chip).You could also use an Arduino, but it's not covered by this guide and it's definetly harder.option in flashrom with the corresponding driver (see this page for more info). Alternatively you can use a USB SPI programmer, like the CH341A or the FT232H/FT2232H/FT4232H: in that case, replace the -p linux_spi.A Linux board with a SPI interface (Raspberry Pi, Beaglebone, C.H.I.P.The prerequisites for the external flashing are:
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