LG LM-X420QM6 User manual

ENGLISH
MFL71427801 (1.0) www.lg.com
Copyright ©2019 LG Electronics Inc. All rights reserved.
USER GUIDE
LM-X420QM6

1
About this user guide
Thank you for choosing this LG product. Please carefully read this user
guide before using the device for the first time to ensure safe and proper
use.
• Always use genuine LG accessories. The supplied items are designed
only for this device and may not be compatible with other devices.
• Descriptions are based on the device default settings.
• Default apps on the device are subject to updates, and support for
these apps may be withdrawn without prior notice. If you have any
questions about an app provided with the device, please contact an
LG Service Center. For user-installed apps, please contact the relevant
service provider.
• Modifying the device’s operating system or installing software from
unofficial sources may damage the device and lead to data corruption
or data loss. Such actions will violate your LG license agreement and
void your warranty.
• Some content and illustrations may differ from your device, depending
on the area, service provider, software version, or OS version, and are
subject to change without prior notice.
• Software, audio, wallpaper, images, and other media supplied with
your device are licensed for limited use. If you extract and use these
materials for commercial or other purposes, you may be infringing
copyright laws. As a user, you are fully responsible for the illegal use of
media.
• Additional charges may incur for data services, such as messaging,
uploading, downloading, auto-syncing and location services. To avoid
additional charges, select a data plan suitable to your needs. Contact
your service provider to obtain additional details.

2
Instructional notices
WARNING: Situations that could cause injury to the user and third
parties.
CAUTION: Situations that may cause minor injury or damage to the
device.
NOTE: Notices or additional information.

3
38 Screen lock
41 Memory card encryption
42 Taking screenshots
43 Entering text
51 Do not disturb
03
Useful Apps
53 Installing and uninstalling apps
54 App trash
55 App Shortcuts
56 Phone
61 Messages
62 Camera
71 Chrome
71 Google apps
73 Contacts
75 QuickMemo+
77 Clock
79 Calendar
79 Calculator
79 FM Radio
Table of contents
01
Custom-designed
Features
6 Camera features
10 Google Assistant
11 Fingerprint recognition
14 Multi-tasking feature
02
Basic Functions
17 Product components and
accessories
18 Parts overview
21 Turning the power on or off
22 Inserting the memory card
23 Removing the memory card
24 Charging the battery
25 Optimizing battery life
26 Touch screen
29 Home screen

4Table of contents
80 File Manager
80 Audio Recorder
81 Smart cleaning
81 Downloads
04
Settings
83 Settings
83 Network & internet
90 Connected devices
93 Sound
94 Display
95 Lock screen & security
97 Extensions
98 Apps & notifications
99 Battery
99 Storage
100 Accounts
100 Accessibility
102 Google
103 System
05
Appendix
107 LG Language Settings
107 Phone software update
109 Anti-Theft Guide
110 Open Source Software Notice
Information
110 Regulatory information
(FCC ID number, etc.)
110 Trademarks
111 FAQ
06
For Your Safety
07
LIMITED WARRANTY -
USA

Custom-designed
Features
01

Custom-designed Features 6
Camera features
Flash Jump-Cut
You can create a GIF by taking photos at three second intervals.
1 Tap , then tap MODE Flash Jump-Cut .
2 Tap to set the number of cuts you want to take.
3 Tap to take photos.
Food
You can take a photo or record a video with adjusting the colour slide bar
and white balance.
1 Tap , then tap MODE .
2 To take a photo, tap .
• Drag the color slide bar on the screen to adjust the white balance
and select the best color.
• If the slide bar is not displayed, tap to adjust the white balance.

Custom-designed Features 7
AI CAM
You can use the AI Cam feature to automatically recognize the object
when taking a photo or recording a video for an optimal quality.
1 Tap , then tap AI CAM.
2 When the object is recognized, the best effect for the scene is applied.
• To apply other effects, tap the scene icon.
• A wide range of categories, such as portrait, pets, food, sunrise,
sunset, scenery, city view, flowers and text, can be recognized
automatically.
Portrait Sunset Flower
• Associated keywords for the object are displayed on the screen.
Keywords do not appear on the actual photos or videos.
• This feature is available only when the front and rear cameras are in the
Auto mode.

Custom-designed Features 8
Google Lens
You can get more information or take desired actions on items around
you using Google Lens, like landmarks, posters, restaurant menus, animals,
flowers, or barcodes, directly in the Camera app.
For example, when you use Google Lens on a:
• Business card: You can save the phone number or address to a
contact.
• Book: You can get reviews and other details about it.
• Landmark or building: You can get more details about it.
• Painting in a museum: You can get details about it.
• Plant or animal: You can learn more about it.
• Flyer or event billboard: You can add that event to your calendar.
• Google Lens is available only when your device is connected to the
internet. If you use mobile data, you may be charged for data usage,
depending on your pricing plan.
Use Google Lens
1 Tap , then tap Google Lens.
2 Point your camera at an item.
3 To get details or take action:
• Tap the item on your screen.
• To select text: Tap a word, and select a desired option. If the result is
not shown, tap it again and drag the blue dots, if needed, and take
desired actions. Tap Speak.

Custom-designed Features 9
Portrait
You can take a sharp portrait by applying the camera lens blur effect.
1 Tap , switch to the front camera, then tap Portrait.
2 When Portrait is available appears on the screen, tap to take a
photo.
• To adjust blur strength, drag the slide bar up, down, left or right
(depending on the orientation of the phone).
• This feature is not available if the surroundings are too dark.
• After applying this feature, touch and hold the the desired position on
the preview screen to automatically apply the exposure value and focus.
In this case, the Portrait feature and blur strength stay the same.

Custom-designed Features 10
Google Assistant
You can manage tasks, plan your day, get answers, and much more.
• To use this feature, first connect to the network and sign in to your
Google account.
Launching Google Assistant
1 Press and hold from the Home screen to launch Google Assistant.
2 Tap GET STARTED.
3 Follow the on-screen instructions to configure the voice settings.
• The device saves your voice data for recognition.
Launching Google Assistant with your voice
1 Say “Ok Google” when the screen is turned on.
2 Say a command or question when
Hi, how can I help?* appears on
the screen.
Launching Google Assistant from the Home
screen
1 Touch and hold from the Home screen.
2 Say a command or question when
Hi, how can I help?* appears on
the screen.
• Voice recognition accuracy may decrease if you speak with an unclear
voice or in a noisy place. When you use the voice recognition feature,
increase its accuracy by speaking with a clear voice in a quiet place.
* The prompt message may vary depending on the software version.

Custom-designed Features 11
Fingerprint recognition
Fingerprint recognition overview
You must register your fingerprint on your device first before using the
fingerprint recognition function.
You can use the fingerprint recognition function in the following cases:
• To unlock the screen.
• To view locked contents in QuickMemo+.
• Confirm a purchase by signing in to an app or identifying yourself with
your fingerprint.
• Your fingerprint can be used for user identification. Very similar
fingerprints from different users may be recognized by the fingerprint
sensor as the same fingerprint. To ensure security, set the screen lock
using a pattern, PIN or Password.
Precautions for fingerprint recognition
Fingerprint recognition accuracy may decrease due to a number of
reasons. To maximize the recognition accuracy, check the following before
using the device.
• Ensure that the fingerprint sensor is not damaged by a metallic object,
such as coin or key.
• When water, dust or other foreign substance is on the fingerprint
sensor or your finger, the fingerprint registration or recognition may
not work. Clean and dry your finger before using the fingerprint sensor.
• A fingerprint may not be recognized properly if the surface of your
finger has a scar or is not smooth due to being soaked in water.
• If you bend your finger or use the fingertip only, your fingerprint may
not be recognized. Make sure that your finger covers the entire surface
of the fingerprint sensor.

Custom-designed Features 12
• Scan only one finger for each registration. Scanning more than one
finger may affect fingerprint registration and recognition.
• The device may generate static electricity if the surrounding air is dry.
If the surrounding air is dry, avoid scanning fingerprints, or touch a
metallic object, such as coin or key, to remove static electricity before
scanning fingerprints.
Registering fingerprints
You can register and save your fingerprint on the device to use fingerprint
identification.
1 Tap Settings Lock screen & security Fingerprints.
• This feature is available when the screen lock is set.
- Lock the device with a pattern, PIN or password.
• If the screen lock is not set, configure the lock screen by following the
on-screen instructions. See
Setting a screen lock for details.
2 Locate the fingerprint sensor on the back of the device and gently put
your finger on it to register the fingerprint.
• Ensure that your fingertip covers the entire surface of the sensor.

Custom-designed Features 13
3 Follow the on-screen instructions.
• Repeat scanning the fingerprint by moving your finger little by little
until the fingerprint registers.
4 When the fingerprint registration is done, tap OK.
• Tap ADD MORE to register another fingerprint. If you register
only one fingerprint and the corresponding finger is not in a good
condition, the fingerprint recognition may not work well. As the
preventive measure against this kind of situation, register multiple
fingerprints.
Managing fingerprints
You can edit or delete registered fingerprints.
1 Tap Settings Lock screen & security Fingerprints.
2 Unlock according to the specified lock method.
3 From the fingerprint list, tap a fingerprint to rename it. To delete it, tap
.
Unlocking the screen with a fingerprint
You can unlock the screen or view the locked content by using your
fingerprint.
1 Tap Settings Lock screen & security Fingerprints.
2 Unlock according to the specified lock method.
3 On the fingerprint settings screen, activate the desired function:
• Screen lock: Unlock the screen with a fingerprint.
• Content lock: Access contents you have locked in QuickMemo+
with a fingerprint.

Custom-designed Features 14
Multi-tasking feature
Multi-Window
You can use two apps at the same time by separating the screen into
multiple windows.
1 Tap from the Home touch buttons.
• Recently-used apps appear.
2 Tap at the top of the desired app to use the Multi-Window feature.
• The selected app appears at the top half of the screen.
You can also access this feature by doing the following:
1 Touch and hold while using an app.
• Recently-used apps appear on the split screen.
2 Tap at the top of the desired app to use the Multi-Window feature.
• The selected app appears at the bottom of the screen.

Custom-designed Features 15
• To deactivate the Multi-Window feature, touch and hold on the
Home touch button.
• To adjust the size of the split screen, drag at the center of the
screen.
• The Multi-Window feature is not supported by some LG apps and apps
downloaded from the Play Store.
Overview screen
The Overview screen provides a preview of your recently-used apps.
To view the list of recently-used apps, tap on the Home touch buttons.
• Touch and hold an app and drag it to the top of the screen to start the
app with the Multi-Window feature. You can also tap at the top of
each app preview.

Basic Functions
02

Basic Functions 17
Product components and
accessories
The following items are included with your device.
• Device
• USB cable
• Charger
• Quick Start Guide
• Ejection pin
• The items supplied with the device and any available accessories may
vary depending on the area and service provider.
• Always use genuine LG Electronics accessories. Using accessories made
by other manufacturers may affect your device's call performance or
cause malfunctions. This may not be covered by LG's repair service.
• Some of the device parts are made of tempered glass. If you drop your
device on a hard surface or subject it to severe impact, the tempered
glass may be damaged. If this happens, stop using your device
immediately and contact an LG Customer Service Center.
• If any of these basic items are missing, contact the dealer from which
you purchased your device.
• To purchase additional basic items, contact an LG Customer Service
Center.
• To purchase optional items, contact an LG Customer Service Center for
available dealers.
• Some items in the product box are subject to change without notice.
• The appearance and specifications of your device are subject to change
without notice.
• Device specifications may vary depending on the area or service provider.
• Be sure to use authentic accessories provided by LG Electronics. Using
third-party accessories may damage the device or cause malfunctions.
• Remove the protective film from the Fingerprint sensor before using the
fingerprint recognition feature.

Basic Functions 18
Parts overview
Microphone
Proximity/Ambient
light sensor
Earpiece
Google Assistant Key
Front camera lens
SIM/microSD card
slot
Touch screen
Flash
Power/Lock key
Speaker Stereo headset jack
Rear camera lens
Charger/USB cable port
Flash
Fingerprint sensor Volume keys (+/-)

Basic Functions 19
Do NOT attempt to remove the back cover.
This device has a non-removable battery. Do not attempt to remove the
back cover. Doing so may severely damage the battery and device, which
could cause overheating, fire, and injury.
• Press and hold the volume down key and Power/Lock key at the same
time for a second to take a screenshot.
• Proximity/Ambient light sensor
- Proximity sensor: During a call, 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.
• Volume keys
- Adjust the volume for ringtones, calls or notifications.
- While using the Camera, gently press a Volume key to take a photo.
To take continuous 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
- Briefly press the key when you want to turn the screen on or off.
- Press and hold the key when you want to select a power control
option.
• Fingerprint sensor
- Turn on the fingerprint recognition feature to simplify the process
of unlocking the screen. See
Fingerprint recognition overview for
details.