linuxboot / linuxboot/heads

x230 (and more): internal flashing heads from lenovobios is possible. (WORKS, BUT WITH CAVEATS. READ THE WHOLE THREAD)

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Description

https://twitter.com/n4of7/status/1509262478869422080

https://mas.to/@libreleah/108047359882985640

so yeah. hda_sdo thing has been known for years, but i had someone on osboot irc earlier, with old osboot setup with locked ifd regions, i helped him unlock without spi flasher, using the hda_sdo trick

flashing from lenovobios is trickier, because lenovo uses pr0 regs to write protect the bios region

see links above. should work. all you need is....

tweezers. metal ones

enjoy!

Contributor guide

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First steps

  1. Read the whole issue, then the project's contributing guide.
  2. Comment on the issue to say you are picking it up — it saves two people doing the same work.
  3. Fork the repository and make your change on a branch.
  4. Open a pull request that references the issue number.

Research direction

Start by reading the linked Twitter and Mastodon references, then review the full issue thread for the stated caveats around Lenovo BIOS flashing, locked IFD regions, PR0 registers, and the HDA_SDO method. No repository file, test, concrete code change, or completion criterion is identified.

Written by the indexing model from the issue text.

Assessment

Domain
operating-systems
Issue type
Documentation
Difficulty
5/5
Estimated time
Over a week
Activity status
Stale
Clarity
Needs clarification
Newbie friendliness
20/100

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