True. Once you remove it from the faraday pouch, even turned off, assume it has contacted one or more cell towers in your location. Two towers is enough to pinpoint your exact location. Phones do talk to towers when turned "off."
It's not all that complicated really. Towers have unique IDs and known GPS coordinates. When your phone pings them it gets signal strength for each. So if you have 75% signal for tower 1, and 50% for tower 2, they can figure out where relative to those two GPS points (the towers) you'd have to be to have that combination of signal strength.
True. Once you remove it from the faraday pouch, even turned off, assume it has contacted one or more cell towers in your location. Two towers is enough to pinpoint your exact location. Phones do talk to towers when turned "off."
Yeah, considering my grades in physics and trig, you'll have to show me proof of that.
It's not all that complicated really. Towers have unique IDs and known GPS coordinates. When your phone pings them it gets signal strength for each. So if you have 75% signal for tower 1, and 50% for tower 2, they can figure out where relative to those two GPS points (the towers) you'd have to be to have that combination of signal strength.