"Privacy" DIP switch wiring - real or software?
#2
You can find the schematics for the PinePhone at least in the wiki (no PCB files though). Look for "SW1-[A-F]", those should be the kill switches.
It looks to me like:
- SW1-A cuts off the modem's power system
- SW1-B disables the WIFI/BT module (assuming that the chip is disabled if CHIP_EN is pulled down)
- SW1-C disables MICBIAS; I think the mic might still work in this case, but with barely audible volume. If that is really the case, it would be a security flaw in my opinion, but it should be tested before making assumptions. Maybe the mic doesn't work at all without the bias voltage.
- SW1-D and SW1-E cut power to the rear and front camera sensors respectively
- SW1-F connects to an analog switch which switches between headphone out R/L (open) and serial TX/RX (closed)

I'm guessing that the schematics for the PinePhone Pro will be made available too. Probably it will not be too different in regards to the kill switches.
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RE: "Privacy" DIP switch wiring - real or software? - by kqlnut - 01-14-2022, 09:13 AM

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