Quick Guide

until the shutdown .
Turn off the screen: press the power button when the device is
in normal working , the screen will be closed .
Sleep: the sleep mode can be triggered by manually pressing
the power key or setting the system to sleep .
Resume: press the power button while the device is in sleep,
after the screen lights on , the system resume.
Note: if you don't use the device for a long time, please turn it
off.