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Basic Functions 29
• Proximity/Ambient light sensor
- Proximity sensor: The proximity sensor turns off the screen and
disables touch functionality when the device is in close proximity
to the human body. It turns the screen back on and enables
touch functionality when the device is outside a specific range.
- Ambient light sensor: The ambient light sensor analyzes the
ambient light intensity when the auto-brightness control mode
is turned on.
• Laser detection auto-focus
- Detects the distance from the camera to your subject for
automatic focusing.
- Quickly focuses on closer or farther objects when you use the
rear camera to take photos.
• Volume keys
- Adjust the volume for ringtones, calls or notifications.
- Gently press a volume key to take a photo. To take continuous
shots of photos, press and hold the volume key.
- Press the Volume Down (-) key twice to launch the Camera app
when the screen is locked or turned off. Press the Volume Up (+)
key twice to launch Capture+.
• Power/Lock key (Fingerprint sensor)
- Briefly press this key when you want to turn on or off the
screen.
- Press and hold this key when you want to select a power control
option.
- Gently put your finger on the key when you want to unlock the
screen with your fingerprint.
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