LG G4 User Guide

10Important notice
4.  Using the Hard Reset (Factory Reset)
If your phone needs to be restored to its original settings and condition, use a Hard 
Reset (Factory Reset).
1  Turn the power off.
2  Press and hold the Power/Lock Key + Volume Down Key at the same time. 
3  Release only the Power/Lock Key when the boot logo is displayed, then 
immediately press and hold it again. 
4  Release all of the keys when the Factory data reset screen is displayed.
5  Press the Volume Down Key to scroll to Ye s, then...

11Important notice
5.  Opening and switching applications
Multitasking is easy with Android; you can keep more than one application running at 
the same time. There is no need to quit an application before opening another. Use and 
switch between several open applications. Android manages each application, stopping 
and starting them as needed to make sure that idle applications don't consume 
resources unnecessarily.
To stop applications:
1  Ta p  . App previews of recently used applications will be...

12Getting to know your phone
Phone layout
Earpiece
Proximity Sensor Front Camera LensNotification LED
Headset JackMicrophone
Charger/USB Port Microphone
Infrared LED
NOTE: Proximity sensor 
When receiving and making calls, the proximity sensor automatically turns 
the backlight off and locks the touch screen by sensing when the phone is 
near your ear. This extends battery life and prevents you from unintentionally 
activating the touch screen during calls.
 WARNING
Placing a heavy object on the phone or...

13Getting to know your phone
Volume Keys Power/Lock Key 
NFC Touch PointLaser Detection 
Auto-Focus
Speaker
Rear Camera Lens
Flash
Power/Lock Key• Press and hold to access the menu to turn your phone off, restart it, or turn airplane 
mode on and off.
• Press once quickly to wake or lock the screen.
Volume Keys While screen is off
• Press Volume Up Key twice to launch QuickMemo+.• Press Volume Down Key twice to launch the camera.
On the Home screen
• Control ringer volume.
During a call
• Control your...

14Getting to know your phone
 WARNING
Be careful not to damage the NFC touch point on the phone, as this is part 
of the NFC antenna.
NOTE: Laser Detection Auto-Focus Sensor
Detects the distance between the rear camera and nearby objects using laser 
technology. This feature helps the camera to focus quickly and accurately at 
short or long distances. 
Installing the SIM or USIM card
Before you can start exploring your new phone, you need to set it up.
1  To remove the back cover, hold the phone fi rmly...

15Getting to know your phone
2  Slide the SIM card into the lower slot for the SIM card as shown in the fi gure. Make 
sure the gold contact area on the card is facing downward.
NOTE: Only microSIM cards work with this device.
3  Insert the battery.
4  To replace the cover onto the device, align the cover over the back of the phone 
 and press it down until it clicks into place . 

16Getting to know your phone
Charging the phone
Charge the battery before using it for first time. Use the charger to charge the battery. 
 WARNING
Use only LG-approved chargers, batteries and cables. If you use unapproved 
chargers, batteries or cables, it may cause a battery charging delay or display 
a pop-up message regarding slow charging. It can also cause the battery to 
explode or damage the device, which are not covered by the warranty.
The Charger/USB Port is located at the bottom of the phone....

17Getting to know your phone
NOTE: Do not open the back cover while your phone is charging.
Unlocking the screen
By default, your screen will lock after a period of inactivity, then turn off.
Unlocking the screen 
1  Press the Power/Lock Key or double-tap on the screen.
2  Swipe the screen in any direction to unlock it.
Smart Lock
You can use Smart Lock to make unlocking your phone easier. You can configure it to 
keep your phone unlocked when you have a trusted Bluetooth device connected to it, 
when...

18Your Home screen
Your Home screen
Touch screen tips
Here are some tips on how to navigate on your phone.
• Tap or touch – A single finger tap selects items, links, shortcuts and letters on the 
on-screen keyboard.
• Touch and hold – Touch and hold an item on the screen by tapping it and not 
lifting your finger until an action occurs.
• Drag – Touch and hold an item for a moment and then, without lifting your finger, 
move your finger on the screen until you reach the target position. You can drag...

19Your Home screen
Home screen
The Home screen is the starting point for many and functions. It allows you to add 
items like app shortcuts and Google widgets to give you instant access to information 
and applications. This is the default canvas and accessible from any menu by tapping 
.
Status Bar
Widget
Application Icons
Home Screen Location Indicator
Quick Button Area
Home Touch Buttons
Shows the phone's status information, including the time, signal strength, battery 
status, and notification...