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by kardos 2416 days ago
Interesting indeed! Here [1] is how it allegedly works. Is the laptop easy enough to open and check if the board you have looks anything like those photos?

On the other hand, putting a signal onto disable pins is not exactly a kill switch. The description sounds like a hardware switch in front of a soft kill, which would make it some sort of quasi-HKS. A real kill switch would need to totally cut power to that controller rather than rely on it playing nice.

On the gripping hand, I find it hard to believe they would overlook something that crucial. Eg, if it didn't work, it would /have/ to show up during testing.

I wonder if the chip needs to be tightly integrated into the board and a proper HKS would require cutting signal to dozens of those pins -- something that is perhaps impractical -- so they went for a lesser option.

FWIW, there is at least one more person alleging the same broken functionality [2]

[1] https://puri.sm/posts/hard-not-soft-kill-switches/

[2] https://forums.puri.sm/t/wifi-killswitch-didnt-work-when-i-n...