When I have less than 5% battery, why does the brightness change to 0%?
■ When my phone's battery reaches less than 5%, my brightness becomes 0%
■ When your phone's battery is less than 5%, the remaining battery is consumed faster
by higher levels of brightness. As such, your phone brightness is automatically adjusted
to 0% when remaining battery is less than 5% to enhance battery efficiency.
How to fix
■ Please be assured that this is a normal feature as opposed to a fault, which was introduced
for Optimus G and later models
(You will find that other manufacturers also have similar features)