LG LG-K428 User Manual

ENGLISH

USER GUIDE

LG-K428

www.lg.com

MFL69563402 (1.0)

Copyright ©2017 LG Electronics, Inc. All Rights Reserved.

About this user guide

Thank you for choosing LG. Please carefully read this user guide before
using the device for the first time to ensure safe and proper use.

Ţ

Always use genuine LG accessories. The supplied items are designed only for
this device and may not be compatible with other devices.

Ţ

This device is not suitable for people who have a visual impairment due to the
touchscreen keyboard.

Ţ

Descriptions are based on the device default settings.

Ţ

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may be withdrawn without prior notice.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 a LG Service Center. For user-installed
apps, please contact the relevant service provider.

Ţ

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 licence agreement and void your warranty.

Ţ

Some contents and illustrations may differ from your device depending on the
region, service provider, software version, or OS version, and are subject to
change without prior notice.

Ţ

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 are entirely responsible for the illegal use of media.

Ţ

Additional charges may apply 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.

Instructional notices

WARNING Situations that could cause injury to yourself or others.

CAUTION

Situations that could cause damage to the device or other
equipment.

NOTE

Notices or additional information.

ENGLISH

2

LIMITED WARRANTY STATEMENT

ARBITRATION NOTICE: THIS LIMITED WARRANTY CONTAINS AN
ARBITRATION PROVISION THAT REQUIRES YOU AND LG TO RESOLVE
DISPUTES BY BINDING ARBITRATION INSTEAD OF IN COURT, UNLESS
YOU CHOOSE TO OPT OUT. IN ARBITRATION, CLASS ACTIONS AND
JURY TRIALS ARE NOT PERMITTED. PLEASE SEE THE SECTION TITLED
“PROCEDURE FOR RESOLVING DISPUTES” BELOW.

Warranty Laws

The following laws govern warranties that arise in retail sales of consumer
goods:

Ţ

The California Song-Beverly Consumer Warranty Act [CC §§1790 et
seq],

Ţ

The California Uniform Commercial Code, Division Two [Com C

§§2101 et seq], and

Ţ

The federal Magnuson-Moss Warranty Federal Trade Commission
Improvement Act [15 USC §§2301 et seq; 16 CFR Parts 701– 703].
A typical Magnuson-Moss Act warranty is a written promise that the
product is free of defects or a written promise to refund, repair, or
replace defective goods. [See 15 USC §2301(6).] Remedies include
damages for failing to honor a written warranty or service contract or
for violating disclosure provisions. [See 15 USC §2310(d).] Except for
some labeling and disclosure requirements, the federal Act does not
preempt state law. [See 15 USC §2311.]

1. WHAT THIS WARRANTY COVERS:

LG offers you a limited warranty that the enclosed subscriber unit
and its enclosed accessories will be free from defects in material and
workmanship, according to the following terms and conditions:

(1) The limited warranty for the product extends for TWELVE (12)
MONTHS beginning on the date of purchase of the product with
valid proof of purchase, or absent valid proof of purchase, FIFTEEN
(15) MONTHS from date of manufacture as determined by the unit’s

3

manufacture date code.
(2) The limited warranty extends only to the original purchaser of

the product and is not assignable or transferable to any subsequent
purchaser/end user.

(3) This warranty is good only to the original purchaser of the product
during the warranty period as long as it is in the U.S., including Alaska,
Hawaii, U.S. Territories and Canada.

(4) The external housing and cosmetic parts shall be free of defects at
the time of shipment and, therefore, shall not be covered under these
limited warranty terms.

(5) Upon request from LG, the consumer must provide information to
reasonably prove the date of purchase.

(6) The customer shall bear the cost of shipping the product to the
Customer Service Department of LG. LG shall bear the cost of shipping
the product back to the consumer after the completion of service under
this limited warranty.

2. WHAT THIS WARRANTY DOES NOT COVER:

(1) Defects or damages resulting from use of the product in other than
its normal and customary manner.

(2) Defects or damages from abnormal use, abnormal conditions,
improper storage, exposure to moisture or dampness, unauthorized
modifications, unauthorized connections, unauthorized repair, misuse,
neglect, abuse, accident, alteration, improper installation, or other acts
which are not the fault of LG, including damage caused by shipping, blown
fuses, spills of food or liquid.

(3) Breakage or damage to antennas unless caused directly by defects in
material or workmanship.

(4) That the Customer Service Department at LG was not notified by
consumer of the alleged defect or malfunction of the product during the
applicable limited warranty period.

(5) Products which have had the serial number removed or made illegible.
(6) This limited warranty is in lieu of all other warranties, express or

implied either in fact or by operations of law, statutory or otherwise,

4

including, but not limited to any implied warranty of marketability or
fitness for a particular use.

(7) Damage resulting from use of non LG approved accessories.
(8) All plastic surfaces and all other externally exposed parts that are

scratched or damaged due to normal customer use.
(9) Products operated outside published maximum ratings.
(10) Products used or obtained in a rental program.
(11) Consumables (such as fuses).

3. WHAT LG WILL DO:

LG will, at its sole option, either repair, replace or refund the purchase
price of any unit that is covered under this limited warranty. LG may
choose at its option to use functionally equivalent re-conditioned,
refurbished or new units or parts or any units. In addition, LG will not
re-install or back-up any data, applications or software that you have
added to your phone. It is therefore recommended that you back-up any
such data or information prior to sending the unit to LG to avoid the
permanent loss of such information.

4. STATE LAW RIGHTS:

No other express warranty is applicable to this product. THE DURATION
OF ANY IMPLIED WARRANTIES, INCLUDING THE IMPLIED WARRANTY
OF MARKETABILITY OR MERCHANTABILITY OR FITNESS FOR A
PARTICULAR PURPOSE, IS LIMITED TO THE DURATION OF THE EXPRESS
WARRANTY HEREIN. LG SHALL NOT BE LIABLE FOR THE LOSS OF
THE USE OF THE PRODUCT, INCONVENIENCE, LOSS OR ANY OTHER
DAMAGES, DIRECT OR CONSEQUENTIAL, ARISING OUT OF THE USE
OF, OR INABILITY TO USE, THIS PRODUCT OR FOR ANY BREACH OF
ANY EXPRESS OR IMPLIED WARRANTY, INCLUDING THE IMPLIED
WARRANTY OF MARKETABILITY OR MERCHANTABILITY OR FITNESS
FOR A PARTICULAR PURPOSE APPLICABLE TO THIS PRODUCT.

Some states do not allow the exclusive limitation of incidental or
consequential damages or limitations on how long an implied warranty
lasts; so these limitations or exclusions may not apply to you. This

5

warranty gives you specific legal rights and you may also have other rights
which vary from state to state.

5. HOW TO GET WARRANTY SERVICE:

To obtain warranty service, please call or fax to the following telephone
numbers from anywhere in the continental United States:

Tel. [phone] or Fax. [phone]

Or visit http://www.lg.com/us/support. Correspondence may also be
mailed to:

LG Electronics Service- Mobile Handsets, P.O. Box 240007, Huntsville, AL
35824

DO NOT RETURN YOUR PRODUCT TO THE ABOVE ADDRESS. Please
call or write for the location of the LG authorized service center nearest
you and for the procedures for obtaining warranty claims.

PROCEDURE FOR RESOLVING DISPUTES:

ALL DISPUTES BETWEEN YOU AND LG ARISING OUT OF OR RELATING
IN ANY WAY TO THIS LIMITED WARRANTY OR THE PRODUCT SHALL
BE RESOLVED EXCLUSIVELY THROUGH BINDING ARBITRATION, AND
NOT IN A COURT OF GENERAL JURISDICTION. BINDING ARBITRATION
MEANS THAT YOU AND LG ARE EACH WAIVING THE RIGHT TO A JURY
TRIAL AND TO BRING OR PARTICIPATE IN A CLASS ACTION.

Definitions. For the purposes of this section, references to “LG” mean LG
Electronics MobileComm U.S.A., Inc., its parents, subsidiaries and affiliates,
and each of their officers, directors, employees, agents, beneficiaries,
predecessors in interest, successors, assigns and suppliers; references to
“dispute” or “claim” shall include any dispute, claim or controversy of any
kind whatsoever (whether based in contract, tort, statute, regulation,
ordinance, fraud, misrepresentation or any other legal or equitable theory)
arising out of or relating in any way to the sale, condition or performance
of the product or this Limited Warranty.

Agreement to Binding Arbitration and Class Action Waiver. You and LG
agree to resolve any claims between us only by binding arbitration on
an individual basis, unless you opt out as provided below. Any dispute
between you and LG shall not be combined or consolidated with a dispute

6

involving any other person’s or entity’s product or claim. More specifically,
without limitation of the foregoing, any dispute between you and LG shall
not under any circumstances proceed as part of a class or representative
action. Instead of arbitration, either party may bring an individual action in
small claims court, but that small claims court action may not be brought
on a class or representative basis.

Arbitration Rules and Procedures. To begin arbitration of a claim, either
you or LG must make a written demand for arbitration. The arbitration
will be administered by the American Arbitration Association (AAA) and
will be conducted before a single arbitrator under the AAA’s Consumer
Arbitration Rules that are in effect at the time the arbitration is initiated
(referred to as the “AAA Rules”) and under the procedures set forth in
this section. The AAA Rules are available online at

www.adr.org/consumer.

Send a copy of your written demand for
arbitration, as well as a copy of this provision, to the AAA in the manner
described in the AAA Rules. You must also send a copy of your written
demand to LG at LG Electronics, USA, Inc. Attn: Legal Department­Arbitration1000 Sylvan AvenueEnglewood Cliffs, NJ 07632. If there is a
conflict between the AAA Rules and the rules set forth in this section,
the rules set forth in this section will govern. This arbitration provision
is governed by the Federal Arbitration Act. Judgment may be entered on
the arbitrator’s award in any court of competent jurisdiction. All issues are
for the arbitrator to decide, except that issues relating to the scope and
enforceability of the arbitration provision and to the arbitrability of the
dispute are for the court to decide. The arbitrator is bound by the terms
of this provision.

Governing Law: The law of the state of your residence shall govern this
Limited Warranty and any disputes between us except to the extent that
such law is preempted by or inconsistent with applicable federal law.

Fees/Costs. You do not need to pay any fee to begin an arbitration. Upon
receipt of your written demand for arbitration, LG will promptly pay all
arbitration filing fees to the AAA unless you seek more than $25,000 in
damages, in which case the payment of these fees will be governed by
the AAA Rules. Except as otherwise provided for herein, LG will pay all

7

AAA filing, administration and arbitrator fees for any arbitration initiated
in accordance with the AAA Rules and this arbitration provision. If you
prevail in the arbitration, LG will pay your reasonable attorneys’ fees and
expenses to the extent required by applicable law. If the arbitrator finds
either the substance of your claim or the relief sought in the demand
is frivolous or brought for an improper purpose (as measured by the
standards set forth in Federal Rule of Civil Procedure 11(b)), then the
payment of all arbitration fees will be governed by the AAA Rules. In such
a situation, you agree to reimburse LG for all monies previously disbursed
by it that are otherwise your obligation to pay under the AAA Rules.

Except as otherwise provided for, LG waives any rights it may have to seek
attorneys’ fees and expenses from you if LG prevails in the arbitration.

Hearings and Location. If your claim is for $25,000 or less, you may
choose to have the arbitration conducted solely on the basis of (1)
documents submitted to the arbitrator, (2) through a telephonic hearing,
or (3) by an in-person hearing as established by the AAA Rules. If your
claim exceeds $25,000, the right to a hearing will be determined by the
AAA Rules. Any in-person arbitration hearings will be held at a location
within the federal judicial district in which you reside unless we both agree
to another location or we agree to a telephonic arbitration.

Opt Out. You may opt out of this dispute resolution procedure. If you
opt out, neither you nor LG can require the other to participate in an
arbitration proceeding. To opt out, you must send notice to LG no later
than 30 calendar days from the date of the first consumer purchaser’s
purchase of the product by either: (i) sending an e-mail to optout@lge.
com, with the subject line: “Arbitration Opt Out” or (ii) calling 1-800-980-

2973. You must include in the opt out e-mail or provide by telephone: (a)
your name and address; (b) the date on which the product was purchased;
(c) the product model name or model number; and (d) the IMEI or MEID
or Serial Number, as applicable (the IMEI or MEID or Serial Number can
be found (i) on the product box; (ii) on a label on the back of the product
beneath the battery, if the battery is removable; or (iii) from the settings
menu via the following path: Settings > General > About phone > Status).

You may only opt out of the dispute resolution procedure in the manner

8

described above (that is, by e-mail or telephone); no other form of notice
will be effective to opt out of this dispute resolution procedure. Opting
out of this dispute resolution procedure will not affect the coverage of
the Limited Warranty in any way, and you will continue to enjoy the full
benefits of the Limited Warranty. If you keep this product and do not opt
out, then you accept all terms and conditions of the arbitration provision
described above.

9

Features you will love ................. 12

quick share ...............................................13

Basics .......................................... 14

Accessories ..............................................15

Phone layout ............................................16

Turning Your Phone On and Off ...............18

Installing the Nano SIM card and

battery......................................................19

Charging the battery ...............................21

Optimizing battery life .............................................22

Inserting the memory card ......................23

Removing the memory card .....................24

Touch screen tips .....................................24

Tap or touch ...................................................................24

Touch and hold.............................................................. 25

Drag.....................................................................................25

Swipe or slide ................................................................ 25

Double-tap ...................................................................... 26

Pinch-to-Zoom .............................................................26

Google account setup ..............................27

Creating your Google account ............................27

Signing into your Google account.....................27

Screen lock ...............................................28

Screen lock overview ................................................ 28

Setting a screen lock ................................................28

Secure start-up settings ........................................29

Lock screen settings .................................................29

KnockON .......................................................................... 30

Knock Code ....................................................................30

Memory card encryption ..........................31

Home screen ............................................33

Getting to Know the Home Screen .................33

Returning to recently-used applications ......34

Customizing the Home screen ...........................35

Using folders from the Home screen ............35

/PUJŻDBUJPOTQBOFM .....................................................36

Capturing a screenshot ............................38

On-screen keyboard .................................38

Transferring data between a PC and the

device .......................................................40

Apps ............................................ 41

Installing or uninstalling apps ..................42

Calls .......................................................... 43

Making a call .................................................................. 43

Calling your contacts ................................................43

Answering and rejecting a call ............................ 43

Making a second call ................................................. 44

Viewing your call logs ...............................................44

Change your call settings ...................................... 44

Contacts ................................................... 45

Searching for a contact ...........................................45

Adding a new contact .............................................. 45

Creating a group ..........................................................45

Messaging ................................................46

Sending a message .................................................... 46

Conversation view ......................................................46

Changing your messaging settings..................46

Camera .....................................................47

Taking a photo .............................................................. 47

Table of contents

10

$BNFSBPQUJPOTPOUIFWJFXŻOEFS ...................47

Interval shot ................................................................... 48

Burst shot ........................................................................49

Gesture shot ..................................................................49

Multi-point Auto-focus ...........................................50

Recording a video........................................................ 50

Gallery ......................................................51

Viewing pictures .......................................................... 51

Editing photos ..............................................................51

Setting wallpaper ........................................................ 51

Zooming in and out ...................................................52

Playing a video .............................................................. 52

Deleting photos/videos ........................................... 53

Email ......................................................... 53

Adding an account .....................................................53

Working with account folders.............................53

Composing and sending email ............................ 54

Changing the Email app general settings .... 54

Deleting an email account ..................................... 54

Music ........................................................55

Playing a song ............................................................... 55

Music player options ................................................. 55

Clock ......................................................... 57

Alarm .................................................................................. 57

World clock .....................................................................57

Timer...................................................................................57

Stopwatch .......................................................................58

Calculator ................................................. 58

Calendar ...................................................58

Voice Recorder .........................................59

Recording a sound or voice ...................................59

Downloads ................................................ 59

LG Backup.................................................60

Google apps..............................................61

Settings ....................................... 63

Settings .................................................... 64

Networks .................................................64

Airplane mode ............................................................... 64

Wi-Fi ................................................................................... 64

Bluetooth .........................................................................66

Mobile data ..................................................................... 67

Call ....................................................................................... 67

Share & connect ..........................................................68

Tethering .......................................................................... 69

More....................................................................................71

4PVOEOPUJŻDBUJPO ................................72

Display ...................................................... 73

General .....................................................74

Language & keyboard ............................................... 74

Location ............................................................................ 75

Accounts & sync ..........................................................75

Accessibility .................................................................... 75

Shortcut keys ................................................................ 77

Google services ............................................................ 77

Security ............................................................................. 78

Quick Cover View ........................................................78

Date & time .................................................................... 79

Storage..............................................................................79

Battery & power saving .......................................... 79

Memory ............................................................................ 80

Apps ....................................................................................80

Tap & pay ..........................................................................80

Backup & reset ............................................................. 80

About phone .................................................................. 81

11

Appendix ..................................... 82

Phone software update ...........................83

FAQ ...........................................................85

Anti-Theft Guide ......................................88

More information .....................................89

Open Source Software Notice

Information .....................................................................89

Trademarks ..................................................................... 89

For Your Safety ........................... 90

Features you will loveFeatures you will love

Features you will love

13

quick share

You can share a photo or video to the app you want immediately after
taking it.

1 Tap

> , then take a photo or record a video.

2 Tap the app icon that appears on the screen to share it using that app.

You can also swipe the icon towards the opposite direction to see what
other apps you can use to share your photos and videos.

quick share icon

NOTE

Ţ

The app displayed by the quick share icon may vary, depending on the type and
frequency of access to the apps installed on the device.

BasicsBasics

Basics

15

Accessories

These accessories are available for use with the your phone.

Ţ

Travel Adaptor

Ţ

Quick Start Guide

Ţ

USB Cable

Ţ

Battery

NOTE

Ţ

Items described above may be optional.

Ţ

Always use genuine LG accessories. The supplied items are designed only for this
device and may not be compatible with other devices.

Ţ

The items supplied with the device and any available accessories may vary
depending on the region or service provider.

Basics

16

Phone layout

Front Camera Lens

Proximity Sensor

Earpiece

Charger/USB PortHeadset Jack

Power/Lock Key

Speaker

Rear Camera Lens

Volume Keys

Flash

Basics

17

Power/Lock Key

Ţ

Turn your phone on/off by pressing and holding
this key.

Ţ

Press once to turn the screen on/off.

Volume Keys While the screen is off:

Ţ

Press the Volume Up Key twice to launch
Capture+.

Ţ

Press the Volume Down Key twice to launch the
Camera.

On the Home screen:

Ţ

Control ringer volume.

During a call:

Ţ

Control your earpiece volume.

When playing audio/video:

Ţ

Control volume continuously.

NOTE: Proximity Sensor

Ţ

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

Ţ

Placing a heavy object on the phone or sitting on it can damage the display
and touch screen functions. Do not cover the proximity sensor with screen
protectors or any other type of protective film. This could cause the sensor to
malfunction.

Basics

18

Turning Your Phone On and Off

Turning your phone on

Press and hold the Power/Lock Key on the back of the phone for a
couple of seconds until the screen turns on.

Turning your phone off

1 Press and hold the Power/Lock Key on the back of the phone until the

Phone options menu appears.

2 Tap Power off in the Phone options menu.
3 Tap POWER OFF to confirm that you want to turn off the phone.

Basics

19

Installing the Nano SIM card and battery

Insert the Nano SIM card provided by the mobile telephone service
provider, and the included battery.

WARNING

Ţ

Do not insert a memory card into the Nano SIM card slot. If a memory card
happens to be lodged in the Nano SIM card slot, take the device to a LG
Service Center to remove the memory card.

1 To remove the back cover, hold the phone firmly in one hand. With your

other hand, lift off the back cover with your thumbnail as shown in the
figure below.

2 Slide the Nano SIM card into the Nano SIM card slot as shown in the

figure below. Make sure the gold contact area on the card is facing
downward.

Basics

20

3 Insert the battery.

4 To replace the cover onto the device, align the back cover over the

battery compartment and press it down until it clicks into place.

Basics

21

Charging the battery

Charge the battery before using it for first time. Use the charger that
came with your device to charge the battery. A computer can also be used
to charge the battery by connecting the phone to it using the USB cable.

WARNING

Ţ

Use only LG-approved chargers, batteries and cables. The use of unapproved
chargers, batteries or cables may cause a battery charging delay. It can also
cause the battery to explode or damage the device, which are not covered by
the warranty.

The charger connector is located at the bottom of the phone. Insert the
charger and plug it into a power outlet.

NOTE

Ţ

Do not open the back cover while your phone is charging.

Basics

22

Optimizing battery life

Extend your battery's power by turning off features that you do not need
to run constantly in the background. You can monitor how applications
and system resources consume battery power.

Extending your phone's battery life:

Ţ

Turn off radio communications when you are not using. If you are not
using Wi-Fi, Bluetooth

or GPS, turn them off.

Ţ

Reduce screen brightness and set a shorter screen timeout.

Ţ

Turn off automatic syncing for Gmail, Calendar, Contacts and other
applications.

Ţ

Some applications you download may consume battery power.

Ţ

While using downloaded applications, check the battery charge level.

Basics

23

Inserting the memory card

Your device supports up to a 32GB microSD card. Depending on the
memory card manufacturer and type, some memory cards may not be
compatible with your device.

WARNING

Ţ

Some memory cards may not be fully compatible with the device. Using an
incompatible card may damage the device or the memory card, or corrupt the
data stored in it.

NOTE

Ţ

Frequent writing and erasing of data shortens the lifespan of memory cards.

1 Remove the back cover.
2 Insert a memory card with the gold-colored contacts facing

downwards.

3 Replace the back cover.

Basics

24

Removing the memory card

Before removing the memory card, first unmount it for safe removal.

1 Tap

> > General tab > Storage & USB > .

2 Remove the back cover and pull out the memory card.

WARNING

Ţ

Do not remove the memory card while the device is transferring or accessing
information. Doing so can cause data to be lost or corrupted or damage to the
memory card or device. LG is not responsible for losses that result from the
misuse of damaged memory cards, including the loss of data.

Touch screen tips

Here are some tips on how to navigate on your phone.

NOTE

Ţ

Do not press too hard; the tap screen is sensitive enough to pick up a light, yet
firm tap.

Ţ

Use the tip of your finger to tap the option you want. Be careful not to tap any
other buttons.

Tap or touch

A single finger tap selects items, links, shortcuts and letters on the
on-screen keyboard.

Basics

25

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 items on the Home screen to reposition them.

Swipe or slide

To swipe or slide, quickly move your finger across the surface of the
screen, without pausing when you first tap it (so you don't drag an item
instead).

Basics

26

Double-tap

Double-tap to zoom on a webpage or a map.

Pinch-to-Zoom

Use your index finger and thumb in a pinching or spreading motion to
zoom in or out when using the browser, Maps, or when viewing pictures.

Basics

27

Google account setup

The first time you open a Google application on your phone, you will be
required to sign in with your existing Google account. If you do not have a
Google account, you will be prompted to create one.

Creating your Google account

1 Tap > > General tab > Accounts & sync.
2 Tap ADD ACCOUNT > Google > Or create a new account.
3 Enter your first and last name, then tap NEXT.
4 Enter your phone number for security tap NEXT.
5 Follow the instructions and enter the required and optional information

about the account. Wait while the server creates your account.

Signing into your Google account

1 Tap > > General tab > Accounts & sync.
2 Tap ADD ACCOUNT > Google.
3 Enter your email address and tap NEXT.
4 Enter your password and tap NEXT.
5 After signing in, you can use Gmail and take advantage of Google

services on your phone.

6 Once you have set up your Google account, your phone will

automatically synchronize with your Google account on the web (if a
data connection is available).

After signing in, your phone will sync with your Google services, such as
Gmail, Contacts, and Google Calendar. You can also use Maps, download
applications from Play Store, back up your settings to Google servers, and
take advantage of other Google services on your phone.

Basics

28

Screen lock

Screen lock overview

Your device's screen turns off and locks itself if you press the Power/Lock
key. This also happens after the device is left idle for a specified period of
time.

If you press the Power/Lock key when a screen lock is not set, the Home
screen appears immediately.

To ensure security and prevent unwanted access to your device, set a
screen lock.

NOTE

Ţ

Screen lock prevents unnecessary touch input on the device screen and
reduces battery consumption. We recommend that you activate the screen
lock while not using the device.

Setting a screen lock

There are several options available for configuring the screen lock settings.

1 Tap > Settings > Display > Lock screen > Select screen lock and

then select the method you prefer.

2 Choose one of the following settings:

Ţ

None – Deactivate the screen lock function.

Ţ

Swipe – Swipe on the screen to unlock the screen.

Ţ

Knock Code – Tap the spaces of the screen in accordance with a
pattern to unlock the screen.

Ţ

Pattern – Draw a pattern to unlock the screen.

Ţ

PIN – Enter a numeric password to unlock the screen.

Ţ

Password – Enter an alphanumeric password to unlock the screen.

NOTE

Ţ

If you incorrectly attempt to unlock the device 5 times, the screen is blocked
for 30 seconds.

Basics

29

Secure start-up settings

For additional security for your device, you can enable the Secure start-up
option when setting a screen lock.

Ţ

You cannot use all functions, except for emergency calls, until you
unlock the device.

Ţ

If you forget your decryption password, you cannot restore encrypted
data and personal information.

Lock screen settings

You can customize the following lock screen settings.

1 Tap > Settings > Display > Lock screen.
2 Customize the following settings:

Ţ

Select screen lock – Select a screen lock method.

Ţ

Smart Lock – Set trusted places, devices, face, voice, and/or on-body
detection so that if you are connected to or near one, the device is
automatically unlocked.

Ţ

Wallpaper – Change the lock screen background wallpaper.

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Clock – Select the position of the clock on the lock screen.

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Shortcuts – Add an app shortcut and directly access the app from
the lock screen by dragging the app shortcut.

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Screen swipe effect – Set screen transition effects when the screen
is unlocked.

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Contact info for lost phone – Display emergency contact information
on the lock screen.

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Lock timer – Set the amount of idle time after which the device
automatically locks.

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Power key instantly locks – Instantly lock the screen when the
Power/Lock key is pressed.

NOTE

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Available setting items may vary, depending on the selected screen lock
method.