Turn 3.5mm Jack on Raspberry Pi Running LineageOS 16

You will need an Android Terminal. You can turn on the default one in the developer settings. Need to turn on developer mode?

You will also need to enable root which can also be done in the Developer settings

Open up the terminal app and run

su
rpi3-audio-jack.sh

More info here

https://konstakang.com/devices/rpi3/LineageOS16.0/