Check Federico's reply here https://www.coreboot.org/pipermail/coreboot/2016-November/082407.html https://www.coreboot.org/pipermail/coreboot/2016-November/08..

Check Federico's reply here https://www.coreboot.org/pipermail/coreboot/2016-November/082407.html https://www.coreboot.org/pipermail/coreboot/2016-November/08... tl;dr: power cycle (power off and then turn on, not just reboot) your PC after the ME neutralization.