Zitat von hx57w im Beitrag #15

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Furthermore, if I flash it to the machine which previously had AMT disabled, the option to enable it appears in the BIOS and I'm able to provision, which was the goal.

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It's great that it started working. Makes sense, as there was no configuration in place to disable AMT in the CSME firmware. It had been soft-disabled after the initial provisioning somehow.

Zitat von hx57w im Beitrag #15

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I have another fifty machines to do, so I need to investigate how to repeat your work of overwriting the EFS partition.

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Oh, that will become extremely tedious fast, haha. If the machines are all identical (exact same SKU, HW etc), then it will be easier because you can copy-paste the cleaned CSME firmware region from the first "fixed/cleaned" dump to the rest. But you must always work on the actual system's dump and replace the CSE region only (i.e. BIOS is unique for each motherboard). Anyway, if you plan to do this, I can tell you what steps to take to make each dump work with FIT before following the cleanup guide and flashing back. It is not easy to understand on your own without prior CSE knowledge.