Typically we have to exchange the desired cpu mcode on the bios, to older revisions with tools like AMI MMtool, UEFI tool or HEX edit…now the issue here is the mod flash operation, theres no USB BFB on that model, so only left options are M-Flash that can refuse to flash a mod file or using the Intel FPT tool to read and write as long as the spi regions are accessible and last resource is SPI programming.
All of this operations has their risks and theres always a chance of a bricked motherboard.
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