Tap "OK "then enter into the "Main Function Operation Screen " as below.
Then select the functions you need and then go directly to the way you need.
1.5 Power saving
Press the power button
on the top side of your device to turn on and off your device for
saving power. When you press the power button to turn off the unit, your device actually enters a
suspend state and the system stops operation. Once you turn on the system again, it resumes.
9