LG -G510 User Manual page 159

If you select Yes, this menu allows you to select the standby
display. In text mode, you can edit the text.
You can set the background of idle screen :
You can set the light-up duration you want whenever you press a
key :
: You can enter voice dial mode whenever you opens
: You can enter voice dial mode by pressing
56
and .
You can set the brightness of LCD you want by
pressing ,
folder.
for a long time.
and
.
key