From: mariond@facts.com   
      
   Privacy: How to decouple GPS navigation from cellular geolocation.   
      
   In other words, how to decoupled GNSS navigation from tower geolocation.   
   This "trick" forces Google Maps to runs with satellite-only positioning.   
      
   Hotspot phone:   
    Exposes only tower metadata + IP, but no GNSS/location apps.   
   Privacy phone:   
    Exposes only GNSS fixes, with traffic masked behind the hotspot's IP.   
      
      
    Both phones are set to:   
    Wi-Fi scanning: OFF   
    Bluetooth scanning: OFF   
    Google Location Accuracy: OFF   
    No Google account and Location History: OFF   
      
   With these settings, the location teardrop tile state affects:   
   a. Whether apps can use GPS for location   
   b. But we have to have "Use precise location" on for each app to use GPS   
      
   With these settings, the cellular data tile affects   
   a. Just that the IP address can be geolocated   
      
   With these settings, the Wi-Fi tile state does not change   
   a. What's uploaded to Google (i.e., zero Wi-Fi APs)   
   b. What's used for location (i.e., zero Wi-Fi APs)   
   c. But if it connects to open access points, it can be geolocated   
      
   So turn off any capacity to accidentally connect to open APs   
    Settings > Connections > Wi-Fi > 3dots > Intelligent Wi-Fi   
     Switch to mobile data = on (affects data geolocation)   
     Switch to better Wi-Fi networks = on (affects wifi geolocation)   
     Turn WI-FI on/off automatically = off (grayed out)   
     Detect suspicious networks = on <== warning for open networks!   
      
   Settings > Connections > Wi-Fi > 3dots > Advanced settings   
    Network notification = off (ignore requests from open networks)   
    Manage networks (forget any open networks you've ever joined)   
      
   Unfortunately, on Android 13, you cannot selectively disable   
   cell-tower-based location while still using the cellular network.   
   a. The cellular tile will allow cell-tower fused location   
      
   We can disable Wi-Fi and Bluetooth scanning, but there's no   
   equivalent toggle for disabling cell tower scanning other than   
   turning off the cellular voice tile (which isn't practical).   
      
   The only trick I can think of is to have two phones in the car.   
   a. Privacy phone (cellular data & cellular voice turned off)   
   b. Hotspot phone (serving a hotspot over cellular data)   
      
   In this case, Google Maps on the privacy phone sees only GNSS-based   
   location and the cellular IP of the hotspot phone. Google Maps on   
   the privacy phone cannot see cell-tower IDs.   
      
   In summary, the privacy advantage of the two-phone system is that   
   a. There is no cell tower geolocation possible on the privacy phone   
      Because its cellular radio is OFF, it never registers with towers.   
      That means no tower IDs are available for coarse location.   
   b. Location is purely GNSS (satellites) + on-device sensors.   
   c. Google sees the hotspot phone's cellular IP address   
      
   The advantage is that you decouple navigation from cellular geolocation.   
   a. Google Maps on the privacy phone sees only satellite-based location   
      and the hotspot's geolocatable IP, not tower IDs.   
   b. This setup prevents tower-based location leaks on the privacy phone   
      while still giving the privacy phone navigation app internet access.   
   c. Google Maps sees the hotspot phone's cellular IP address as the source   
      
   The hotspot phone is essentially just a data pipe whose location services   
   don't feed into the privacy phone's GNSS-only navigation.   
      
   GNSS navigation is isolated on one device, while tower metadata stays on   
   the other. Both are never fused into the navigation session.   
   --   
   This is a trick. I don't expect people to do it. But it should work.   
   It decouples GPS location from cellular data location on Android 13.   
      
   --- SoupGate-Win32 v1.05   
    * Origin: you cannot sedate... all the things you hate (1:229/2)