Since various build.prop editor apps didnt work for me on Lineage 17.x, here the way I managed to edit build.prop:
- via Termux/Terminal:
mount -o remount,rw /
nano /system/build.prop
-
edit to your hearts content - I usually bring down media vol steps:
ro.config.media_vol_steps=15 -
mount -o remount,ro / -
Reboot device