Power On & Off; Power On; Power Off; Sleep Mode - M3 Mobile BLACK User Manual

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Control PanelBacklight for backlight off time and
Start Control Panel 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.
12