LineageOS for Fairphone 3
Involved in Google-Exorcism for the Fairphone 3.
See here on how to build your own Fairphone Firmware:
https://forum.fairphone.com/t/rom-unofficial-lineageos-16-0-for-fp3
https://github.com/WeAreFairphone/android_device_fairphone_FP3
Simple hack to find out if all specified proprietary files are there:
https://gitlab.com/bitmuster/check_proprietary
At some point in time I need to remove those wires I soldered onto the PCB in order to find the Tx and Rx pins of the Snapdragon CPU: