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Before using the terminal
When the battery is almost exhausted
Notification tone sounds, a message prompting to charge appears and
the display dims. When the battery is exhausted, the power of the terminal
automatically turns off. Depending on the function or app, a message
indicating low battery may appear when you try to activate them and they
may not be activated.
Turning power ON/OFF
Turning power ON
1
Press [Power/Screen lock key] for 2 seconds or longer
• The starting screen appears, and then the lock screen appears.
• When you turn the power on for the first time, make the initial settings
following to the onscreen instructions (P.35).
2
■
Checking the radio wave condition
An icon indicating radio wave reception level appears on the status bar
When appears, you are out of LTE/FOMA service area or in a place
where the radio wave cannot reach.
Turning power OFF
1
Press [Power/Screen lock key] for 1 second or longer
2
"Power off" → "Power off"
• The terminal vibrates and power turns off.
• Press and hold for 1 second or longer to power off, restart and
enable/disable emergency mode (P.45).
Setting/Canceling screen lock
You can set the screen lock to prevent the erroneous operation of the
touch screen or keys.
• When the display is turned off with "Screen timeout" (P.107) set, the
screen lock activates automatically after about 5 seconds. You can
change time period before the screen lock activates automatically
(P.107).
Setting screen lock
1
Press [Power/Screen lock key]
• The display turns off and the screen lock is set.