I have tried to use some apps to turn off the backlight permanently but not work for my O3D.
So I tried an odd way to do it.
I tried to forced brightness value to 0 by using
echo 0 > /sys/class/leds/keyboard-backlight/brightness
chmod 444 /sys/...
For those who cannot download, click the white triangle button next to where there's green/blue/red/white. then select the second white button should give you faster speed
based on the original link. the guy said the rom sucks... :-(
I have made an .apk file for anybody have trouble running the script
Thanks for your work!
I just got my thrill.. Please to see that there is someone doing development here