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LG LM-K420YM User Manual

LG LM-K420YM
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MFL71756201 (1.0)
Copyright ©2020 LG Electronics Inc. All rights reserved.
www.lg.com
ENGLISH
USER GUIDE
LM-K420YM
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LG LM-K420YM Specifications

General IconGeneral
ProcessorQualcomm Snapdragon 845
RAM3 GB
Internal Storage32 GB
Front Camera8 MP
Battery Capacity3000 mAh
Operating SystemAndroid 9.0 (Pie)
Display TypeIPS LCD

Summary

Safety and Usage Notices

Instructional Symbols

Explains WARNING, CAUTION, and NOTE symbols for user safety.

Custom-designed Features

Camera Features

Details on using the camera, including wide-angle and portrait modes.

Google Assistant

How to use and launch the Google Assistant feature.

Fingerprint Recognition

Setup, usage, and security precautions for fingerprint unlock.

Multi-tasking Feature

Explains pop-up windows and multi-window functionality.

Basic Functions

Product Components and Accessories

Lists items included with the device and important usage notes.

Parts Overview

Diagram and description of device buttons, sensors, and ports.

Turning the Power On or Off

Instructions for powering the device on, off, and restarting.

Installing the SIM Card

Step-by-step guide for inserting SIM and memory cards.

Battery Information and Care

Guidance on charging and maintaining the device battery.

Touch Screen Operations

Explains various touch gestures like tapping, dragging, and swiping.

Home Screen Management

Organizing apps, widgets, folders, and navigation.

Screen Lock and Security

Setting up screen locks, PINs, passwords, and fingerprint security.

Useful Apps

Installing and Uninstalling Apps

Guide to installing and uninstalling applications from app stores.

Phone Operations

Instructions for making, answering, and rejecting calls.

Messaging App Usage

How to send, read, and configure messaging settings.

Camera Features and Usage

Detailed guide on using the camera, modes, and settings.

Gallery and Media Management

Viewing and managing photos, videos, and creating movies/GIFs.

Contacts Management

Adding, importing, and managing contacts and speed dial.

Clock and Timer Functions

Setting alarms, world clock, timers, and stopwatch.

Music Player and Other Apps

Using music player, ThinQ, Audio Recorder, Game Launcher.

Settings

Network & Internet

Configuring Wi-Fi, mobile data, and network connections.

Connected Devices

Pairing and managing Bluetooth, NFC, and file sharing.

Sound, Display, and Notifications

Customizing sound, display, and notification settings.

Lock screen & security

Configuring screen locks, fingerprints, and security updates.

Privacy and System Settings

Managing privacy, system updates, language, and backup.

Appendix

LG Language Settings and Bridge

Setting device language and using LG Bridge PC software.

Software Updates and Security

Updating phone software and protecting against theft.

Regulatory, Safety, and Legal

Trademarks, safety statements, and legal compliance details.

Troubleshooting and FAQs

Common problems, error messages, and solutions for device usage.

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