Comment 18 for bug 1468020

Revision history for this message
Sergi Quiles PĂ©rez (sergiqp) wrote :

@thomas-voss As I can see I didn't explain it well.

With <So the phone was sometimes trying to connect to AGPS to know the satellites positions when I was travelling in 'dark zones' for satellites.> I mean that when you are travelling in that 'dark zone' the GPS doesn't receive positions. If that 'dark zone' is short, when you exit the phone finds the satellites position easily; but if that zone is long when you exit it tries to connect to AGPS to determine the satellites positions and is then when it fails. I.e. if you cross a short tunnel the phone doesn't need AGPS when exit but if you cross a long one it needs it and the location services fails.

There are only my thoughts after analyse what I have observed.

It happens either if you have wifi enabled or only phone network.

Apart of that:
   - I haven't tried if the phone gets positions with only GPS. I tried it one year ago and it didn't work but I haven't tried it again.
   - I tried today to put the phone in plain mode, clear .cache, reboot and open SensorsStatus. It has received positions in about 2 minutes (without wifi nor phone network, i.e. without AGPS).
   - I'll try to travel in plane mode (with 2 GPS apps opened) when I have a chance.

I hope this to be useful. :-)