Got my S5 from the T-mo store last night, rooted it, and installed TWRP. I've tried changing the dpi using BuildProp Editor from the play store. The editor requested and was granted root. I changed the lcd_density value from 480 to 360 and saved the change. BuildProp Editor asked to restart, and I let it. On reboot, though, nothing changed. Do I need to change permissions on build.prop?