Android Geocaching software c:geo and the Hylly.org Finnish National Survey maps worked using the normal Android instructions.
Edit: the problem of “backgrounding” that still plagues my old Xperia 10 III does not seem to occur with J2 and SFOS 5.2.0.13, and GPS fix is acquired a lot quicker than with the old Xperia.
However, for some reason c:geo always says at startup that it is low on storage — /home partition where android_storage is located should be at 5% 10G of 218G so I’m not sure why?
But worse, it seems with this setup c:geo only intermittently gets GPS location information, mainly when switching back to the app. So, one needs to swipe away from c:geo, and then again bring it to the foreground to see the location get updated. Years and years ago, I had this same problem with c:geo and back then it was fixed with an operating system upgrade. Anyone else see similar issues?