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Questions regarding compatibility table #3

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benbender opened this issue Nov 19, 2020 · 1 comment
Closed

Questions regarding compatibility table #3

benbender opened this issue Nov 19, 2020 · 1 comment

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@benbender
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Hey,

two points I'm unsure:

  • What do you mean with "Internal flash" on the compatibility table? Every SPI-BIOS-chip is "internal flash" from my point of view or am I missing something?
  • TPM yes/no means "in MFG Mode yes/no" or is there a third state I'm not aware of? Maybe a clearification for both points would be good...
@digmorepaka
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Internal flash as in the modified modules can be flashed via the stock update mechanism or using an exploit to disable flash protections. Stock ThinkPad firmwares as many others have their own flash range protections to prevent tamper on top of the PCH's IFD. These cannot be bypassed even with GPIO33.

TPM yes/no refers to the ability to use the TPM normally(for example with bitlocker). There is two primary 'non-functional' states i am aware of, MFG mode and 5 beeps. 5 beeps means the biosguard checks failed but on some machines it can still boot and operate normally, for example T430.

I will link this issue in the readme as a clarification.

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