Comment on Attention!

• slazer2au@lemmy.world ⁨2⁩ ⁨weeks⁩ ago

  Because “off” is not really off in most mobile devices, more like a deep hibernate

  What is your source on that because when I was working for a wireless telco we did a spectrum analysis of mobiles off and on and the phone signal drops below the noise floor when off with or without the battery connected.

  source

  • wander1236@sh.itjust.works ⁨2⁩ ⁨weeks⁩ ago

    iPhones have a feature where they still intermittently broadcast a Bluetooth signal after being turned off or even if they shut off because of low battery: discussions.apple.com/thread/255809396?sortBy=ran….

    Google does the same thing with the Pixel: support.google.com/pixelphone/answer/9338817?hl=e….

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    • slazer2au@lemmy.world ⁨2⁩ ⁨weeks⁩ ago

      We are talking about mobile signal not Bluetooth, check the root comment.

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      • wander1236@sh.itjust.works ⁨2⁩ ⁨weeks⁩ ago

        I’m just addressing what you quoted. They said phones don’t actually turn off anymore, you asked for a source on that.

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  • wizardbeard@lemmy.dbzer0.com ⁨2⁩ ⁨weeks⁩ ago

    My understanding is that it’s not the phone signal, but bluetooth low power mode, which is how many countries did covid exposure tracking.

    So not full location triangulation, but more a hypothetical that a business or government could very easily set up bt low power beacons and identify devices that got in range like they did for covid tracking.

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    • slazer2au@lemmy.world ⁨2⁩ ⁨weeks⁩ ago

      We are talking about mobile signal not Bluetooth, check the root comment.

      source
  • floquant@lemmy.dbzer0.com ⁨2⁩ ⁨weeks⁩ ago

    It’s not cellular bands, I believe it’s Bluetooth beacons and possibly UWB. But the fact that “Find My” works even when the phone is “off” is a pretty well documented fact. Of course if you could actually unplug the battery those would die too.

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    • slazer2au@lemmy.world ⁨2⁩ ⁨weeks⁩ ago

      We are talking about mobile signal not Bluetooth, check the root comment.

      source