disable light bar notification in xperia s rooted phone

Use root browser for unrestricted access


Go to system/etc/hw_config.sh.
Third from the bottom 

Code:

Select Code

echo 2000 > $dev/button_backlight/max_current

Modified to

Code:

Select Code

echo 0 > $dev/button_backlight/max_current
echo 0 > $dev/button_backlight/max_brightness

Saved and reboot.enjoy it