Heres the latest modified v1.42 X220 bios with the following features: - Whitelist removal - Unblocked AES-NI - Unblocked advanced menu - Unlocked memory speed - Unblocked AES MSR 0xE2 - New vbios Intel 2119 - 16Gb 1866 + eGPU solved First flash the original v1.42 bios (8duj27us), reboot and run fl...

I upgraded my X220 to 1.42 initially, and then rolled back to 1.40 modified from http://x220.mcdonnelltech.com/ and I was able to flash the modded bios and use my 1866 ram crucial ram and access the "Advanced" menu as well. I have not experienced any "lock out", although I have not tried to use a d...