M3 Mobile M3 SKY, User Manual

Page: 14 / 42

Getting Started
14
1.3 Power on & off
1.3.1 Power on
To turn on the device, attach fully charged main battery and press the power button
briefly.
Empty or low level of the back-up battery may cause starting problem. If
this happens press and hold the reset button for 5 seconds.
1.3.2 Power off
Press and hold the power button for more than 5 seconds to turn off the device.
1.3.3 Sleep mode
Device will automatically enter ‘Sleep mode’ to save battery if there is no constant
usage.
By default, backlight is turned off after 30 seconds of null state and will enter sleep
mode if the device is not used for 1 minute on battery power.
The time can be set from Start

Settings

System

Backlight for backlight off
time and Start

Settings

System

Power for sleep mode.
In sleep mode, all modules except phone module are powered off which
causes Wi-Fi to disconnect from the current AP. However, on resume, Wi-
Fi is automatically re-connected to the AP normally within 10 seconds.