Unable to modify build.prop I'm using a stock Nexus 5X. I tried to edit build.prop the following way:


I unlocked the bootloader and booted into TWRP (not flashed)
I mounted system
I then adb pulled build.prop, edited it, then pushed it back


On reboot the changes are reverted. Write protection is not on (that I know of), what should I do?

I am not rooted.
Making permanent changes to /system required me to be rooted.