No network location with MicroG 0.3.9 on LineageOS 14.1/Android 7.1.2

[breversa]

Describe the bug I’m not getting any network location with MicroG 0.3.9 on LineageOS 14.1/Android 7.1.2 running on a Samsung Galaxy J3 (2016) SM-J320FN

To Reproduce Steps to reproduce the behavior: 0. Get a Samsung Galaxy SM-J320FN

1. Unlock its bootloader and install TWRP
2. Install LineageOS from https://xdaforums.com/t/rom-sm-j320fn-f-g-m-18-05-2024-unofficial-lineageos-14-1.4672462/
3. Add signature spoofing using https://downloads.nanolx.org/NanoDroid/Stable/NanoDroid-patcher-23.1.2.20210117.zip
4. Install MicroG Services + Companion + Framework Proxy from the official F-Droid repo
5. Grant all permissions in MicroG Companion
6. Set up location by activating all toggles in MicroG Companion (I picked BeaconDB but Positon gets no better result)
7. Reboot
8. Start SatStat (or any other app using network location)

Expected behavior I should get an coarse/network location through BeaconDB/Positon wifi query

Screenshots If applicable, add screenshots to help explain your problem.

System Android Version: 7.1.2 Custom ROM: LineageOS 14.1

Additional context I’ve installed the XSRG Root X1 certificates from https://www.stoutner.com/lets-encrypt-isrg-root-x1-and-privacy-browser/ but the issue was present before.

[ale5000-git]

microG can bind to system location only if it is a system app.

[breversa]

So this is where your installer comes into play, right?

I thought that signature spoofing + MicroG installation through F-Droid was enough.

[ale5000-git]

Yes.

Normal app installation (doing it via F-Droid, adb install or a different way is the same) works fine for most things, but there some things that cannot work like: waking up apps or binding to system location.