See GPS signal very bad - #35 by crun
Yes, this is with no network connection, after rebooting.
This is quite incorrect. In the forest, in the mountains where there is absolutely no cellular signal whatsoever, and where GPS signal is weak due to foliage, and there is limited sky view due to surrounding mountains, my X10III Android can get lock. As can the previous Mediatek chipped phone.
I have two X10III, Android and SFOS, so I can compare them directly, side by side, at the same time.
In “normal” high signal outdoor conditions factory Android (not AOSP) gets lock in seconds. SFOS sees sufficient satellites within seconds, but then takes longer to lock, or totally fails to get lock if te signals are not sufficiently strong.
There is no wifi, and no cellular, in the places and at the times that my GPS must work. There’s plenty of signal when I am places with street signs and people I could ask where I am. But I don’t really need it then.
I noticed that with SF5.0.0.62, GPSINFO (Direc85 version) gets an immediate position from SFOS, and reports “time to first fix” of 2 seconds. However when I look at the satellite screen, I see that “satellites in use” is 0 after 1 minute. After a few minutes it has slowly crept up, taking more than 5 mins to get lock on 10 sats. I am 1m from a wall of glass. There are 16 green strength sats on the screen.
For comparison, stock Android (all cell/wifi connections turned off) took 17 seconds to lock, with ~10 satellites in use. (right next to each other)