I’m using /e/ OS on HTC 10 (the build from 17.01.2019, based on Android 7.1.2), and my GPS is not working either (I used to have LineageOS installed, and it worked fine there).
I tried the FasterGPS app, as well as some gps.conf files for my country (Poland), but nothing seems to fix it.
The GPS test app doesn’t report any satellites in view / use.
I’d be really grateful for any help in solving this issue, as I’d love to keep using this system, but GPS is a very crucial feature.