LG G3 User Guide

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6.  Connecting your phone to a computer via USB
1  Use the USB cable that was provided with your phone to connect the 
phone to a USB port on your computer. You'll receive a notifi cation that the 
USB is connected and can see USB connection mode screen.
2  Tap Media device (MTP) or Send images (PTP) to confi rm that you want to 
transfer fi les between your phone and the computer.
When the phone is connected as USB storage, you receive a notification. Your 
phone is recognized as a device on your computer. You can now copy files to 
and from the phone.
7.   Unlock screen when using data connection
Your screen will go dark if untouched for a period of time when using a data 
connection. To turn on your LCD screen, press the Power/Lock Key . To  
change the length of time the screen takes to turn off, tap  >  > Settings 
> Display tab > Screen timeout and select the desired amount. 
8.  Internal antenna
Please hold the mobile phone straight up as a regular phone.
While making/receiving calls or sending/receiving data, try to avoid holding the 
lower part of the phone where the antenna is located. It may affect call quality.
Important notice 
						

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9. When the screen freezes
If the phone does not respond to user input or the screen freezes:
Press and hold the Power/Lock Key  for 10 seconds to reboot it.
10.  Do not connect your phone when you power on/off 
your PC 
Make sure to disconnect your phone from the PC when powering your PC on 
or off as it might result in PC errors.
11.  Hardware key control mode
If your phone display is damaged or broken, you can answer an incoming call, 
end a call, or turn off an alarm using the hardware keys.
1  Turn your phone off.
2  Press and hold the Power/Lock Key  and the Volume Keys   at the 
same time for more than 6 seconds to enter the Hardware key control 
mode.
3  Press the Volume Keys   to scroll to the desired option, then press the 
Power/Lock Key  to confi rm.• Answer a call: Press the Volume Keys at the same time.• End a call: Press the Power/Lock Key during a call.• Stop an alarm: When an alarm rings, press and hold the Volume Up Key 
or Volume Down Key to stop the alarm.
NOTE: If you use your phone with a broken display glass, your phone can 
break even more or you can be injured. Make sure to visit the LG authorized 
service center to get your phone repaired.  
						

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To turn on the phone, press and hold the Power/Lock Key  on the back side 
of the phone for 3 seconds.
To turn off the phone, press the Power/Lock Key 
 on the back side of the 
phone for 3 seconds and tap Power off and OK to confirm.
Front view
Front Camera Lens
-  Use to take a picture of yourself or to video chat on 
supported applications.
Proximity Sensor
-  Senses proximity toward other objects, such as your head 
during a call, so that you do not accidentally activate 
unwanted features. Notification LED
Earpiece
Back Key -  Returns to the previous screen.-  Closes pop-up menus and dialog boxes.-  Touch and hold to access the Dual window feature.
Recent Apps Key -  Displays available options for the current screen or 
application.
-  Touch and hold to display the available options for the current 
app or screen.
Home Key -  Returns to the Home screen from any screen.-    Touch and hold to access Google Now
Quick Keys
-  Gives you quick access to your most used applications. 
-  To add an icon, drag and drop it in the bar. 
-  To remove an icon, touch and hold it and remove it from the 
bar.
Getting to know your phone 
						

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Warning! Placing a heavy object on the phone or sitting on it can damage 
its LCD and touch screen functionalities. Do not cover the LCD’s proximity 
sensor with a protective film. This can cause the sensor to malfunction.
Side view
Volume KeysBack Camera Lens  LDAF Sensor 
(Laser Detection 
Auto-Focus 
Sensor)
SpeakerFlashPower/Lock Key 
NFC Touch  Point
IR (Infrared) 
LED
Microphone
Charger/
USB Port
3.5mm 
Headset Jack
NOTE: LDAF Sensor (Laser Detection Auto-focus Sensor) :
This sensor measures the distance to the subject using laser technology 
and allows for improved focusing speed and object detection in low-light 
situations. 
						

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Rear view
Battery Back cover
Micro SIM/
microSD Card 
slot
Notice
The NFC antenna for this model is on the back cover.  
Getting to know your phone 
						

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Installing the SIM card and battery
Before you can start exploring your new phone, you’ll need to set it up. To insert 
the SIM card and battery: 
1  Hold the phone on your hand fi rmly. With the other hand, lift the back 
cover using the fi ngertip cutout located on the left side of the cover and 
remove it.
2  Slide the SIM card into the SIM card slot. Make sure the gold contact area 
on the card is facing downwards.
NOTE: Please insert the notched side of the SIM card first. Refer to the 
image inscribed below the SIM card slot. The SIM card slot is located at the 
bottom of the dual card slot. 
						

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Getting to know your phone
3  Insert the battery into place by aligning the gold contacts on the phone 
and the battery  and press the battery down until it clicks into place .
4  Replace the back cover of the phone . Apply a steady downward 
pressure until the back cover clicks into place . 
						

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Charging your phone
1  Connect the wall adapter and USB cable as shown below. The USB symbol 
on the USB cable should face toward you.
2  Plug the USB cable (as shown below) into the phone's Charger/Accessory 
Port. Make sure the USB symbol is facing upwards.
Always unplug the charger from the wall socket after the phone is fully charged 
to save unnecessary power consumption of the charger.  
						

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Getting to know your phone
NOTE: • The battery must be fully charged initially to improve battery lifetime.• Your phone has an internal antenna. Be careful not to scratch or damage this 
rear area, as that will cause loss of performance.
When the battery becomes fully discharged and you connect the phone to a 
charger, the LED lights for the keys at the bottom of the phone will blink. This 
is normal operation for a completely discharged battery to prevent overflowing 
current because the phone is designed to provide reasonable protection 
against damage to the battery. Once the battery has enough charge, the 
screen will turn on and display a battery image.
Inserting a microSD card
NOTE: This device supports up to a 64GB microSD card.
1  Remove the back cover.
2  Gently insert the microSD card into the slot. Make sure the gold contact 
area is facing downwards.
NOTE: Please insert the notched side of the microSD card first. Refer to the 
image next to the microSD card slot. The microSD card slot is located at 
the top of the dual card slot. 
						

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NOTE: Some downloaded applications store data on the microSD card 
as well as on the phone. Due to this feature, if you skip the unmount 
procedure, it can cause an error because information between the microSD 
card and the phone is not accorded properly. In the worst case, the microSD 
card can be corrupted or damaged.
Removing the microSD card
To safely remove the microSD card from your phone, you must first unmount it.
1  From the Home screen, tap  >  > Settings > General tab > Storage > 
Unmount SD card.  
2  Remove the back cover and gently pull the microSD card from the slot.
Warning! Do not remove the microSD card without unmounting it first. 
Otherwise, it may damage the microSD card as well as your phone, and the 
data stored on the microSD card may be corrupted.