14
Getting to know your smartphone
Home button indicator
The Home button is surrounded by a colored ring that
indicates power status.
Extending battery life
To extend your smartphone’s battery life, please follow these
steps:
1. Tap Start > Settings > System > Backlight
8
End button
Press to end a call/close the current window;
press and hold to lock the phone and turn the
screen off.
9
Micro USB connector Connect to a USB cable/charger.
10
Microphone
Internal microphone.
11
Volume control
Increase or decrease the ringer/system
volume.
12
Camera button
Activate the camera or take a picture.
13
Camera
A 3.2-megapixel camera for taking high-
resolution images.
14
Handsfree speaker
Emits audio from your smartphone; suitable
for handsfree use.
15
Reset button
Press to reset the device.
Color
State
Description
White
Steady (10
seconds)
The device is waking up.
Slow flashing New event (missed call, new message, voicemail
etc.)
Red
Steady
Battery is charging.
Flashes
rapidly
Battery level is critically low.
Green
Steady
Battery is fully charged.
No. Item
Description
Summary of Contents for P400
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