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Table of Contents
Getting Started .............................................................................................................................................. 1
Customize the Home Screen ...................................................................................................... 33
Change the Wallpaper ........................................................................................................ 33
Add Widgets to the Home Screen ...................................................................................... 34
Add Folders to the Home Screen ....................................................................................... 34
Making Connections .................................................................................................................................... 36
Phone Calls and Voicemail ................................................................................................................. 37
Place and Answer Calls .............................................................................................................. 37
Call Using the Phone Dialer ................................................................................................ 37
Bluetooth ..................................................................................................................................... 73
Bluetooth Information .......................................................................................................... 73
Enable the Bluetooth Feature ............................................................................................. 73
TOC iv
Pair Bluetooth Devices........................................................................................................ 74
Connect to a Paired Bluetooth Device ................................................................................ 74
Send Information Using Bluetooth ...................................................................................... 75
Receive Information via Bluetooth ...................................................................................... 76
Apps and Entertainment .............................................................................................................................. 77
Camera and Video .............................................................................................................................. 78
Camera Overview ....................................................................................................................... 78
Configuring Camera Options .............................................................................................. 78
Take Pictures and Record Videos .............................................................................................. 79
Take Pictures ...................................................................................................................... 80
Record Videos .................................................................................................................... 80
Getting Help .............................................................................................................................................. 130
For Assistance .................................................................................................................................. 131
Index .......................................................................................................................................................... 159
TOC ix
Getting Started
The following set of topics will introduce you to your phone, help you get set up with service, provide an
overview of the phone screen, and get you started with basic phone operations.
1
Introduction
The following topics describe the basics of using this guide and your new phone.
About the User Guide
Thank you for purchasing your new LG LS755. The following topics explain how best to use this guide to
get the most out of your phone.
Before Using Your Phone
Read the Get Started guide and Important Information booklet that were packaged with your phone
thoroughly for proper usage.
Accessible services may be limited by subscription contract conditions.
Descriptions in the User Guide
Note that most descriptions in this guide are based on your phone's setup at the time of purchase. Unless
otherwise noted, instructions begin from the phone's home screen, which is displayed by tapping the
Home key . Some operation descriptions may be simplified.
Screenshots and Key Labels
Screenshots in the user guide may appear differently on your phone. Key labels in the user guide are
simplified for description purposes and differ from your phone's display.
Other Notations
In the user guide, the phone may be referred to either as "phone," "device," or "handset." A microSD™ or
microSDHC™ card is referred to as an "SD Card" or a "memory card."
Introduction 2
Part
Description
LED indicator
Front-Facing Camera Lens
Allows you to take pictures and video of yourself. Also lets you
participate in video chats.
Volume Buttons
Allow you to adjust the ringer and media volumes, or to adjust the
in-call volume during a call.
SIM/Memory card tray
3.5mm Headset Jack
Allows you to plug in a headset for convenient, hands-free
conversations.
Charger/Accessory Port
Allows you to connect the phone charger or an optional USB
cable.
Power/Lock Button
Locks the screen. Press and hold to open the phone options menu
for the following options: Power off, Power off and restart, and
Turn on/off Airplane mode.
Proximity Sensor
Senses proximity towards other objects (such as your head) so
that touch commands are not accidentally activated during a call.
Note: Please be careful not to cover the sensors with a protective
film, pouch, or a protective case not authorized by LG.
Earpiece
Lets you hear the caller and automated prompts.
Set Up Your Phone
The following topics give you all the information you need to set up your phone and wireless service for
the first time.
Parts and Functions
These topics illustrate your phone’s primary parts and key functions.
Note: Your phone's screens and apps layouts are subject to change. This user guide uses sample
images only.
Phone Layout
The following illustration outlines your phone’s primary external features and buttons.
Set Up Your Phone 3
Microphone
Transmits your voice for phone calls or records your voice or
ambient sounds for voice recordings and videos.
Flash
Helps you take pictures and video in dim lighting.
Speaker
Lets you hear the different ringers and sounds. The speaker also
lets you hear the caller’s voice in speakerphone mode.
Back-Facing Camera Lens
Lets you take pictures and record videos.
CAUTION! Inserting an accessory into the incorrect jack may damage the phone.
Battery Use
The following topics explain how to insert and remove your phone’s battery.
Charge the Battery
Your phone is equipped with a Li-Ion battery. It allows you to recharge your battery before it is fully
drained. The battery provides up to
XX.X hours of continuous digital talk time.
You can charge your phone’s battery using either the included AC adapter or via a USB connection with
your computer.
Charge Using the AC Adapter
1. Plug the USB connector into the charger/accessory port at the bottom of your phone.
2. Plug the other end of the USB cable into the AC adapter.
3. Plug the AC adapter into an electrical outlet.
The indicator light illuminates when charging starts. The light goes off when the battery is fully
charged. Fully charging a battery may take up to three hours.
4. After charging, disconnect the phone from the charger.
Unplug the AC adapter from the outlet, and remove the micro USB cable from the phone and
the AC adapter.
Note: Always unplug the charger from the wall socket after the phone is fully charged to save
unnecessary power consumption of the charger.
Charge Using a PC Connection
Before using a PC connection to charge your phone, ensure that the computer is turned on. Depending
on the type of connection, your phone’s battery may not charge.
Set Up Your Phone 4
1. Insert the small end of the micro USB cord into the charger/accessory port at the bottom of your
phone.
2. Insert the large end of the micro USB cord into an external USB port on your computer.
3. After charging, remove the micro USB cable from both the phone and the computer.
Nano SIM Card
The Nano SIM card is an IC (Integrated Circuit) card containing phone number and other customer
information.
Handling the Nano SIM Card
Keep the following in mind when handling a Nano SIM card.
● Customer is responsible for any damage caused by inserting Nano SIM card in another-brand IC
card reader, etc. Boost Mobile is not responsible in such case.
● Always keep the IC chip clean.
● Wipe clean with a dry, soft cloth.
● Avoid applying labels. May damage the Nano SIM card.
● See instructions included with the Nano SIM card for handling.
● The Nano SIM card is the property of Boost Mobile.
● The Nano SIM card is replaceable (at cost) in case of loss/damage.
● Return the Nano SIM card to Boost Mobile when cancelling your subscription.
● Returned Nano SIM cards are recycled for environmental purposes.
● Note that Nano SIM card specifications and performance may change without notice.
● It is recommended that you keep a separate copy of information that is stored on the Nano SIM
card. Boost Mobile is not responsible for damages from stored information that is lost.
● Always follow emergency procedures to suspend service if your Nano SIM card or phone (Nano
SIM card inserted) is lost/stolen. For details, contact Customer Service.
● Always power off the phone before inserting/removing a Nano SIM card.
microSD Card
Your phone supports the use of an optional microSD card (not included) to expand its storage capacity.
Some cards may not operate properly with your phone.
Set Up Your Phone 5
microSD card Cautions
Data: Information stored on the microSD card can become lost or changed accidently or as a result of
damage. It is recommended that you keep a separate copy of important data. Boost Mobile is not
responsible for damages from data that is lost or changed.
Reading/Writing Data: Never power off or remove the battery while reading or writing data.
Handling microSD card: Use/store microSD cards away from the reach of infants. May cause
choking if swallowed.
Insert microSD Card
Follow these steps to insert an optional microSD card (not included). Make sure to power your phone off
before inserting or removing a microSD card.
1. Gently insert the ejection pin into the hole on the card tray and then pull out the ejected tray.
2. Place the memory card into the correct section of the tray, with the arrows oriented correctly.
When inserting the SIM card, make sure that the metallic contacts face down.
3. Insert the card tray back into the slot.
Note: Always use a genuine Nano-SIM card supplied by the operator.
Unmount the microSD Card
Always unmount the microSD card before removing it from your phone.
1. Tap > Tools > Settings > General tab.
2. Tap Storage & USB.
3. Tap .
Remove microSD Card
Follow these instructions to remove a microSD card. Always power the phone off before inserting or
removing a microSD card.
1. Tap > Tools > Settings > General tab.
2. Tap Storage & USB.
3. Tap .
4. Remove the back cover.
5. Slide the microSD card out of the slot to remove it.
Set Up Your Phone 6
6. Attach the back cover.
Format microSD Card
When you insert an optional microSD card for the first time, it is recommended that you format it on your
phone.
1. Tap > Tools > Settings > General tab.
2. Tap Storage & USB.
3. Tap SD card.
4. Tap > Settings.
5. Tap Format > FORMAT.
All data on the microSD card is erased, and the card is formatted for use on your phone.
Turn Your Phone On and Off
The instructions below explain how to turn your phone on and off.
Turn Your Phone On
■ Press and hold the Power/Lock Button.
Your phone will power on. Depending on the settings, you may see the lock screen.
See
The first time you turn the phone on, you will see the setup screens. See
If your phone is not yet activated, see
Lock and Unlock Your Screen and Select Screen Lock for information about using the
screen lock.
Screens
for details.
Activation and Service for more information.
Turn Your Phone Off
1. Press and hold the Power/LockButton to open the phone options menu.
2. Tap Power off to turn the phone off.
3. Tap POWER OFF to confirm.
Your phone will power off.
Your screen remains blank while your phone is off (unless the battery is charging).
Complete the Setup
Tip: The KnockON feature allows you to double-tap the screen to easily turn it on or off.
Set Up Your Phone 7
Use the Touchscreen
Your phone’s touchscreen lets you control actions through a variety of touch gestures.
Tap
When you want to type using the onscreen keyboard, select items onscreen, such as application and
settings icons, or press onscreen buttons by simply tapping or touching them with your finger.
Touch and Hold
To open the available options for an item (for example, a contact or link in a Web page), touch and hold
the item.
Swipe or Slide
To swipe or slide means to quickly drag your finger vertically or horizontally across the screen.
Drag
To drag, press and hold your finger with some pressure before you start to move your finger. While
dragging, do not release your finger until you have reached the target position.
Set Up Your Phone 8
Flick
Flicking the screen is similar to swiping, except that you need to swipe your finger in light, quick strokes.
This finger gesture is always in a vertical direction, such as when flicking the contacts or message list.
Rotate
For most screens, you can automatically change the screen orientation from portrait to landscape by
turning the phone sideways. When entering text, you can turn the phone sideways to bring up a bigger
keyboard.
Note: The Auto-rotate switch needs to be selected for the screen orientation to automatically change. Tap
Tip: You can also access the screen rotation setting from the Notifications Window. Drag the Status Bar
down and tap Rotation to select or deselect the option.
Set Up Your Phone 9
Pinch and Spread
“Pinch” the screen using your thumb and forefinger to zoom out or “spread” the screen to zoom in when
viewing a picture or a Web page. (Move fingers inward to zoom out and outward to zoom in.)
Activation and Service
Before using your phone, you must set up your service with Boost Mobile. You will need your phone‘s
serial number (MEID), printed on a sticker inside the battery compartment.
For more information about your Boost Mobile account, see Boost Account Information and Help.
Create Your Account and Pick Your Plan
Set up your Boost Mobile account.
1. From your computer, visit boostmobile.com and click ACTIVATE.
2. Choose an activation option and click Next.
3. When prompted, enter the serial number (MEID) printed on the sticker located on the back of
your phone in the battery compartment. This number can also be found on the bottom panel of
the phone’s package.
4. Follow the remaining instructions to choose your plan and select a payment method.
5. Follow the activation instructions below and you‘ll be able to start using your phone.
Note: You can also activate by phone by calling 1-888-BOOST-4U (1-888-266-7848) from any other
phone.
Activate Your Phone
After setting up your account on
activate automatically. If you are swapping from another Boost Mobile device to a new one, be sure to
turn off the old device before swapping the serial number (MEID). Once the MEID swap is complete, turn
on the new device and the programming information will be pushed to your device automatically.
You can also start the activation process manually.
■ Tap > Tools > Settings > General tab > Activate this device.
boostmobile.com, simply turn your device on. Your device is designed to
Complete the Setup Screens
The setup screens help you set up certain features and preferences on your phone. Once your phone has
been turned on, you will see a Accessibility message. You can then complete the setup process.
Note: You may be able to complete the setup screens before your phone has been activated on your
account.
Set Up Your Phone 10
1. On the configuration screen, touch NEXT to get started.
2. Follow the onscreen instructions to complete each section. For each topic, you will have the
option to skip it and continue to the next screen.
Language Selection - Select a desired language.
Set internet connection - If prompted, follow the prompts to sign in to an available Wi-Fi
network. For secured Wi-Fi networks, you will need to enter a password. See
Wi-Fi for more
details.
Google Account - Sign in to (or set up) a Google Account.
Name - Add your name to personalize some apps.
Set Up Email - Set up your personal or Exchange email account.
Protect your phone - Prevent others from using this phone without your permission by
activating device protection features.
Google Services - Read all of the information for the available Google Services and, if you
agree, tap NEXT. Otherwise, uncheck the options and tap NEXT.
•Help apps find your location - Helps apps determine location. This means sending
anonymous location to Google, even when no apps are running. Tap Learn more for
additional information.
•Improve location accuracy - Allows apps and services to scan for Wi-Fi networks even
when Wi-Fi is off.
•Help improve your Android experience - Allows your device to send diagnostic and
usage data to Google automatically. Tap Learn more for additional information.
Legal document – Read all of the information about legal documents.
• EULA (End-User License Agreement) - Read the End-User License Agreement and tap
the I agree check box if you agree to the terms.
•Low power location estimation - Read the Low power location estimation information
and tap the I agree check box if you agree to the terms.
3. Tap Done. Your setup is now complete. Follow the onscreen instructions to learn about basic
touch menu navigation, view tutorials, or just get started.
Set Up Your Phone 11
Basic Operations
The following topics outline basic features and operations of your phone.
Basics
The following topics offer an overview of your phone’s basic operations.
Home Screen
Most of your phone’s operations originate from the home screen or the apps list.
■ From any screen, tap the Home key to display the home screen.
For information about using the home screen, see
Home Screen Basics.
Select Options and Navigate Screens
Tap icons, onscreen keys, and other items to open or activate the assigned function.
■ Tap Back to return to the previous screen.
Menu Operations
You can display options menus using the menu key, any app-specific menu icon, or by tapping and
holding a screen area, depending on your current app.
■ Tap to view available settings and options.
Recent Applications
You can display a list of recently used applications using the Overview key.
■ Tap Overview to view a list of recently used applications.
Phone Settings Menu
You can customize your phone’s settings and options through the Settings menu.
■ Tap > Tools > Settings .
– or –
Tap > touch and hold > System settings.
– or –
Basic Operations 12
Drag the status bar down and tap Settings.
For more information, see
Settings.
Portrait and Landscape Screen Orientation
The default orientation for your phone’s screen is portrait (vertical), but many apps will change to
landscape orientation (widescreen) when you rotate the phone sideways. Not all screens will adjust for
landscape orientation.
Note: Not all screens will adjust for landscape orientation.
Turn Screen Rotation On or Off
1. Pull down the status bar to display the quick settings menu.
2. Tap Rotation to turn the option on or off.
You may need to scroll left or right to see the Screen rotation option.
Note: You can also set the rotation option from the main settings menu. Tap > Tools > Settings
> Display tab > Auto-rotate screen.
Capture Screenshots
You can use your phone’s power and volume buttons to capture screenshots.
■ Press and hold the Power/LockButton and Volume Down Button at the same time to capture
a screenshot of the current screen.
The current screenshot will be captured and stored in the Screenshots album in the phone’s
Gallery. Tap > Photos .
Applications
All installed apps can be accessed and launched from the home screen.
1. Tap .
2. Tap an app icon to launch the corresponding application.
The application opens.
Preinstalled Apps
The following table outlines the primary apps that have been preinstalled on your phone.
Basic Operations 13
App
Function/Service
Google
Access Google applications.
Camera
Take pictures and record videos using the front and rear cameras.
Chrome
Browse the Internet.
Contacts
Displays the Contacts that can be synchronized with your phone from
either your Google or Outlook account. Contacts can only be synched
to a managed account.
Emergency Alert
Provides access to your emergency messages and it's settings.
Management
Access power and storage space management apps.
Messenger
Provides access to your text and multimedia messages.
Phone
Access the dial pad to make calls.
Photos
Displays a Gallery of camera images and video saved on your phone.
Play Store
Browse, search for, and download applications from the Google Play
Store app.
QuickMemo+
Allows you to take screen shots and write a memo using the images.
LG SmartWorld
Launches the LG SmartWorld app.
Uninstalled apps
Reinstall apps that have been uninstalled in the past 24 hours.
Tools
Access the File Manager, Weather, Calculator, Voice Recorder,
Downloads applications and more.
Voicemail
Use Visual Voicemail for a quick and easy way to access your
voicemail. Now you can find exactly the message you are looking for
without having to listen to every voicemail message first.
Basic Operations 14
Boost 411
Boost 411 gives you access to a variety of services and information,
including residential, business, and government listings; movie listings
or show times; driving directions, restaurant reservations, and major
local event information. You can get up to three pieces of information
per call, and the operator can automatically connect your call at no
additional charge.
Boost Music
Discover millions of DRM-free music tracks, ringtones, and ringback
tones from Boost’s official music store and player.
Boost TV
Watch live and on demand entertainment from popular broadcast and
cable networks, news channels and primetime TV shows.
Boost Zone
Stay connected to all the latest news and information from Boost.
Included here are news, feedback, featured applications and tips/tricks
for your device.
Basic Operations 15
Phone Number
Follow the instructions below to display your phone’s wireless phone number.
1. Tap > Tools > Settings > General tab.
2. Tap About phone.
3. Tap Status.
You will see the number listed under My phone number.
Airplane Mode
Airplane mode turns off all functions that emit or receive signals, while leaving your phone on so you can
use apps that don’t require a signal or data.
To turn on airplane mode:
1. Press and hold the Power/Lock Button to display the phone options menu.
2. Tap Turn on Airplane mode > TURN ON.
Your phone is now in airplane mode. You will see the airplane mode icon in the status bar.
Tip: You can also access airplane mode through the status bar menu. Drag the status bar down and tap
Airplane mode > TURN ON.
To turn off airplane mode:
1. Press and hold the Power/Lock Button to display the phone options menu.
2. Tap Turn off Airplanemode.
Your phone’s wireless connection features are now restored.
Tip: You can also access airplane mode through the status bar menu. Drag the status bar down and tap
Airplane mode .
Basic Operations 16
Enter Text
You can type on your phone using one of the available touchscreen keyboards or Google voice typing.
Touchscreen Keyboards
Your phone offers you a choice of touchscreen keyboards for entering text. The keyboard appear
automatically onscreen when you tap a text entry field, and they can be used in either portrait or
landscape mode.
The methods available include:
●Google Keyboard allows you to use a traditional QWERTY setup to enter text. Additional options
expand your ability to enter text faster and more accurately.
● Google voice typing allows to use Google voice recognition to convert speech to text.
● LG Keyboard allows you to use a LG keyboard to enter text.
Note: Keyboard layouts and options may change depending on where you’re using them. For example, if
you’re entering text to do a Web search, a search icon may be available instead of an enter key.
To change the keyboard:
1. From any screen where you can enter text, tap the input field to reveal the keyboard.
2. Drag the Status Bar down and tap Change keyboard.
Basic Operations 17
QWERTY Keyboard
You can enter text using the on-screen keyboard. The on-screen keyboard appears on the screen when
you tap an available text entry field.
Basic Operations 18
Phone Keyboard
When T9 is off, to enter text, tap the key labeled with the desired letter until it appears on the screen. For
example, tap once for "a", twice for "b", or three times for "c".
Basic Operations 19
Tips for Editing Text
Your phone gives you many options to make entering text easier, including copying, cutting, and pasting
text, using voice-to-text input, customizing the user dictionary, using predictive text, and more.
To cut/copy and paste:
1. Touch and hold a word to highlight it.
2. Drag the blue highlight markers to highlight the text you want.
– or –
To select all the text, tap > SELECT ALL in the context menu.
To cancel the selection, simply tap unselected text or empty area.
3. Tap CUT or COPY in the context menu.
4. Place the cursor on the location where you want to paste the text.
5. Touch and hold the text field and tap PASTE. The text that you pasted also remains in the
phone's memory (temporarily), so you can paste that same text in another location.
Move Cursor Using the Space Bar
Touch and hold the space bar and slide your finger to the left or right to move the cursor.
To change the keyboard height:
1. While the keyboard is open, tap > Keyboard height and layout > Keyboard height.
2. Drag the blue bar to adjust the keyboard height.
To change the bottom row keys:
1. Tap > Tools > Settings > General tab > Language & keyboard > LG Keyboard > Keyboard height and layout > QWERTY keyboard layout.
2. Drag to add or delete keys or change the order. To change to another character on the visible key,
tap the key and choose the desired character that you want displayed.
Note: This function does not support some languages.
Basic Operations 20
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