- I extracted the gbe.bin blob from my T440p's original ROM using the
blobs/t440p/extract script.
- Using a hex editor, I corrected the sign bit in part 0 that I found
was malformed in my analysis:
https://github.com/osresearch/heads/pull/1282#issuecomment-1400634600.
- After correcting the sign bit, nvmutil showed that both parts of my
gbe.bin blob had valid checksums.
- Finally, I used nvmutil to set the MAC address to 00🇩🇪ad:c0:ff:ee.