LG LM-K420YMW User Manual Download Page 1

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MFLXXXXXXXX (1.0)

www.lg.com

ENGLISH

USER GUIDE

LM-K420

Summary of Contents for LM-K420YMW

Page 2: ...ice and lead to data corruption or data loss Such actions will violate your LG licence 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 licenced for limited use I...

Page 3: ...user guide 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 ...

Page 4: ...nctions 26 Product components and accessories 27 Parts overview 31 Turning the power on or off 32 Installing the SIM card 34 Inserting the memory card 35 Removing the memory card 35 Battery 38 Touch screen 41 Home screen 50 Screen lock 53 Memory card encryption 54 Taking screenshots 55 Content sharing 57 Do not disturb 6 Guidelines for safe and efficient use ...

Page 5: ...ame Launcher 93 Smart Doctor 93 LG Mobile Switch 94 App trash 94 RemoteCall Service 94 Cell Broadcast 95 Google apps 04 Settings 99 Settings 99 Network internet 106 Connected devices 109 Sound 110 Notifications 110 Display 112 Wallpaper theme 112 Lock screen security 114 Privacy 115 Location 115 Extensions 117 Apps 117 Battery 118 Storage 118 Accounts 118 Digital Wellbeing parental controls 119 Go...

Page 6: ...are update 129 Anti Theft Guide 130 Open Source Software Notice Information 130 Regulatory information RegulationID number E labeling etc 131 Trademarks 132 Laser safety statement 132 DECLARATION OF CONFORMITY 133 Contact office for compliance of this product 134 Moreinformation 138 FAQ ...

Page 7: ... Rate or SAR Tests for SAR are conducted using standardised methods with the device transmitting at its highest certified power level in all used frequency bands While there may be differences between the SAR levels of various LG device models they are all designed to meet the relevant guidelines for exposure to radio waves The SAR limit recommended by the International Commission on Non Ionizing ...

Page 8: ...ety standard previously set by both international and U S standards The design of this device complies with FCC guidelines and these international standards Part 15 19 statement This device complies with part 15 of the FCC Rules Operation is subject to the following two conditions 1 This device may not cause harmful interference and 2 this device must accept any interference received including int...

Page 9: ...in a residential installation This equipment generates uses and can radiate radio frequency energy and if not installed and used in accordance with the instructions may cause harmful interference to radio communications However there is no guarantee that interference will not occur in a particular installation If this equipment does cause harmful interference or television reception which can be d...

Page 10: ... and create a fire hazard Use a dry cloth to clean the exterior of the unit do not use solvents such as benzene thinner or alcohol Do not charge the device when it is on soft furnishings The device should be charged in a well ventilated area Do not subject this unit to excessive smoke or dust Do not keep the device next to credit cards or transport tickets it can affect the information on the magn...

Page 11: ...e device to low air pressure at high altitude Do not expose the device to extremely low air pressure Otherwise it can cause explosion of the battery or leakage of flammable liquid or gas Efficient device operation Electronics devices All devices may receive interference which could affect performance Do not use your device near medical equipment without requesting permission Please consult your do...

Page 12: ...ou are listening to music whilst out and about please ensure that the volume is at a reasonable level so that you are aware of your surroundings This is of particular importance when near roads Avoid damage to your hearing To prevent possible hearing damage do not listen at high volume levels for long periods Damage to your hearing can occur if you are exposed to loud sound for long periods of tim...

Page 13: ...your device at a refueling point Do not use near fuel or chemicals Do not transport or store flammable gas liquid or explosives in the same compartment of your vehicle as your device or accessories In aircraft Wireless devices can cause interference in aircraft Turn your device off before boarding any aircraft Do not use it on the ground without permission from the crew Children Keep the device in...

Page 14: ...attery in hot or cold places as this may deteriorate battery performance Risk of explosion if battery is replaced by an incorrect type Dispose of used batteries according to the instructions Always unplug the charger from the wall socket after the device is fully charged to save unnecessary power consumption of the charger Actual battery life will depend on network configuration product settings u...

Page 15: ...ch can cause overheat and injury The battery must be replaced by a qualified professional The battery should be recycled or disposed separately from household waste In case this product contains a battery incorporated within the product which cannot be readily removed by end users LG recommends that only qualified professionals remove the battery either for replacement or for recycling at the end ...

Page 16: ...Custom designed Features 01 ...

Page 17: ...und Sound quality and effects LG 3D Sound Engine and tap to activate it If you connect an external audio device such as an earphone or speaker to the product a pop up appears to turn on the LG 3D Sound Engine feature Google Assistant Google Assistant overview Your device has the built in Google Assistant feature Find answers and get things done while on the go To use this feature first connect to ...

Page 18: ... To use this feature on the home screen tap Settings Lock screen security Secure lock settings Smart Lock and then use the screen lock method you set to unlock the device You need to unlock the device by using the specified method if you fail to unlock the device with voice recognition See Setting a screen lock for details 5 Tap Finish Accessing by Voice 1 When the home screen is turned off or loc...

Page 19: ...gerprint 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 the locked content in the Gallery Confirm a purchase by signing into an app or identifying yourself with your fingerprint You can use fingerprint data for user authentication There is a possibility that the fingerprint ...

Page 20: ...e the sensor and the finger clean and remove all moisture before putting the finger on the sensor If the finger s surface is rough due to it being scarred or pruney from water the sensor may not be able to recognise the fingerprint In such a case register another fingerprint If you bend your finger or use the fingertip only your fingerprint may not be recognised Make sure that your finger covers t...

Page 21: ... the on screen instructions See Setting a screen lock for details 2 Place your finger on the fingerprint sensor on the device and adjust it little by little Gently press the fingerprint sensor so that the sensor can recognise your fingerprint Ensure that your finger covers the entire surface of the fingerprint sensor 3 Follow the on screen instructions Until the fingerprint registration is complet...

Page 22: ...ity 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 Activate the desired function 1 On the home screen tap Settings Lock screen security Fingerprints 2 Unlock according to the specified lock m...

Page 23: ...e screen and easily switch between them at any time 1 Swipe up on from the bottom of the screen 2 Tap the app icon on the top left of the app screen and select Pop up window If you tap the app icon the App info Multi window Pop up window and Pin app options appear 3 The app appears in the form of a pop up window on the screen This feature may not be available in some apps or screens ...

Page 24: ...ar area Using the app folder for pop up windows If you tap on the pop up window the pop up window is minimised into the app icon You can move the app icon anywhere you want by dragging it If two or more pop up windows are minimised the app folder is created to contain the app icons The recently used app icon is used as the app folder icon If you tab the icon all the icons for the minimised pop up ...

Page 25: ... bottom half of the screen When using Buttons only navigation 1 Tap on the navigation bar Recently used apps appear If you tap the app icon the App info Multi window Pop up window and Pin app options appear 2 Tap the app icon on the top left of the app to be displayed in the multiwindow and select The selected app appears at the top half of the screen 3 Tap the other app to be displayed in the mul...

Page 26: ...Basic Functions 02 ...

Page 27: ...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 Centre If any of these basic items are missing contact the dealer from which you purchased your device To purchase additional items contact an LG Customer Service Centre Some items...

Page 28: ...Basic Functions 27 Parts overview ...

Page 29: ...or 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 analyses the ambient light intensity when the auto brightness control mode is turned on Volume keys Adjust the volume for ringtones calls...

Page 30: ...n See Fingerprint recognition overview for details Some functions may be restricted depending on the region and product specifications of different telecommunications providers There are NFC chip built into the rear part of the product Be careful not to damage or cover the NFC chip Do not put heavy objects on the device or sit on it Failure to do so may damage the touch screen Screen protective fi...

Page 31: ...o cover the microphones While you are talking on the phone do not cover the microphone with your hand or fingers Do not use a phone case that is not a genuine product or cover the microphone with accessories tape etc Hold the product correctly as shown in the image when you are using it ...

Page 32: ...ower off Press and hold the Power Lock key then select Power off Restarting the device When the device is not working properly or does not respond restart it by following the instructions below 1 Press and hold the Power Lock key and the Volume Down key at the same time until the power is turned off 2 When the device is restarted release the key Power control options Press and hold the Power Lock ...

Page 33: ...In order for the water resistant and dust resistant features to work effectively the card tray must be inserted correctly 1 Insert the pin into the hole of the card tray and press the pin and then pull the card tray out of the product 2 Align the Nano SIM cards on the card tray and press the card in the direction of the arrow as shown in the figure 3 Insert the card tray into the phone as shown in...

Page 34: ...ly in the direction of arrow as shown in the figure Make sure that the card placed on the card tray does not move out of its position Insert the SIM card with the gold coloured contacts facing downwards Be sure to insert the SIM card into the device by following the instructions in the user manual If you insert or remove the card tray from the device be careful not to let water or other liquids en...

Page 35: ...t the ejection pin into the hole on the card tray 2 Pull out the card tray 3 Put the memory card on the card tray with the gold coloured contacts facing downwards 4 Insert the card tray back into the slot Some memory cards may not be fully compatible with the device If you use an incompatible card it may damage the device or the memory card or corrupt the data stored in it Frequent writing and era...

Page 36: ...m the card tray 4 Insert the card tray back into the slot Do not remove the memory card while the device is transferring or accessing information This may cause data to be lost or corrupted or may damage the memory card or the device LG is not responsible for losses that result from the abuse or improper use of memory cards including the loss of data Battery Charging the battery Before using the d...

Page 37: ...ging adapter provided with the product as basic components Your device has an internal rechargeable battery For your safety do not remove the embedded battery Using the device when it is charging may cause electric shock To use the device stop charging it Remove the charger from the power socket after the device is fully charged This prevents unnecessary power consumption Another way to charge the...

Page 38: ...rotective case is inserted the device may not charge properly LG Electronics is not responsible for any issues concerning accessories of other brands For such issues contact the manufacturer of the accessory product Using the battery efficiently Battery lifespan may decrease if you keep many apps and functions running simultaneously and continuously Cancel background operations to increase battery...

Page 39: ...arise yourself with how to control your device by using touch screen gestures Tapping Lightly tap with your fingertip to select or run an app or option Touching and holding Touch and hold for several seconds to display a menu with available options ...

Page 40: ...nd hold an item such as an app or widget then move your finger to another location in a controlled motion You can use this gesture to move an item Swiping Touch the screen with your finger and move it quickly without pausing You can use this gesture to scroll through a list a web page photos screens and more ...

Page 41: ...ion with an ambient light that is not too bright and bright enough to read books Do not press the screen with excessive force Gently tap with your fingertip on the option you want Touch control may not work properly if you tap while wearing a glove or by using the tip of your fingernail Touch control may not work properly if the screen is moist or wet The touch screen may not function properly if ...

Page 42: ...f any screen to directly go to the Home screen You can manage all apps and widgets on the Home screen Swipe the screen left or right to view all installed apps at a glance Home screen layout You can view all apps and organise widgets and folders on the Home screen The Home screen may differ depending on the manufacturer policy user settings software version or service provider ...

Page 43: ...they can be accessed from any Home screen canvas Navigation bar You can go to the previous screen or home screen while using the app and check the list of apps you used recently Using Navigation bar Here is the gestures guide to control the Navigation bar To go to Home screen swipe up from the bottom edge of the screen To go back to the previous screen swipe in from the left or right edge of the s...

Page 44: ...larm is set Vibrate mode is on Bluetooth is on Connected to a computer via USB Battery level Airplane mode is on Missed calls Wi Fi is connected Mute mode is on GPS is on Hotspot is on No SIM card The NFC mode is on Some of these icons may appear differently or may not appear at all depending on the device s status Refer to the icons according to the actual environment and area in which you are us...

Page 45: ...r tap the arrow icon to open the list of quick setting icons You can tap to add delete or arrange icons in the notice window If you touch and hold the icon the settings screen for the corresponding function appears You can use the notifications panel even on the lock screen Drag the notifications panel while the screen is locked to quickly access the desired features ...

Page 46: ... On the Home screen touch and hold on an empty space then select the desired action from below To rearrange the Home screen canvases touch and hold on a canvas then drag it to another location To add a widget to the Home screen touch and hold on a blank area of the Home screen then select Widgets To change wallpapers and themes touch and hold on a blank area of the Home screen then select Wallpape...

Page 47: ...nd hold on a blank area of the Home screen then select Home screen settings See Home screen settings for details To view or reinstall the uninstalled apps touch and hold on a blank area of the Home screen then select App trash See App trash for details To change the default screen touch and hold on a blank area of the Home screen move to desired screen tap then tap the screen once more ...

Page 48: ...plays apps and widgets pinch your fingers on the Home screen or drag up from the bottom edge of the screen Moving apps on the Home screen On the Home screen touch and hold an app then drag it to another location To keep frequently used apps at the bottom of the Home screen touch and hold an app then drag it to the quick access area at the bottom To remove an icon from the quick access area drag th...

Page 49: ... actions To edit the folder name tap the folder name To edit the colour tap the right upper circle To add apps touch and hold an app then drag it over the folder and release it To remove an app from the folder touch and hold the app and drag it to outside the folder If the removed app is the only one app that existed in the folder the folder is removed automatically You can also add or remove apps...

Page 50: ...ave square or rounded corners Google feed Show to the left of the main Home screen Sort apps by Set how apps are sorted on the Home screen Hide apps Select which apps you want to hide from the Home screen Loop Home screen Enable to allow continuous Home screen scrolling loop back to first screen after the last screen Search Enable to search apps by swiping down on the Home screen Swipe down on the...

Page 51: ...een 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 On the home screen tap Settings Lock screen security Select screen lock and then select the method you prefer 2 Customise the following settings None Deactivate the screen lock function Swi...

Page 52: ...e phone s owner Secure lock settings You can set secure lock settings 1 On the home screen tap Settings Lock screen security Secure lock settings 2 Select a function you want to set Make pattern visible shown only when Pattern is set as a screen lock Turn on to make pattern visible Lock timer Allow you to set the amount of time before the screen automatically locks after the backlight turns off ti...

Page 53: ... the user When tapping the screen use your fingertip Do not use a fingernail To use the KnockON feature make sure that the proximity light sensor is not blocked by a sticker or any other foreign substance Turning the screen on Double tap the middle of the screen Tapping the top or bottom of the screen may decrease the recognition rate Turning the screen off Double tap on an empty space on the Home...

Page 54: ...xclude media files Encrypt all files except for media files such as music photos and videos Once memory card encryption starts some functions are not available If the device is turned off while encryption is underway the encryption process will fail and some data may be damaged Therefore be sure to check if the battery level is sufficient before starting encryption Encrypted files are accessible o...

Page 55: ...Press and hold the Power Lock key and the Volume Down key at the same time for at least two seconds Screenshots can be viewed from the Screenshots folder in the Gallery Via Screenshot On the screen where you want to take a screenshot drag the status bar downwards then tap See Writing notes on a screenshot for details ...

Page 56: ...ice 3 Select the TV you want to connect to For use with Chromecast Google Play services should be up to date Viewing content from nearby devices You can view content from various devices such as a computer NAS or mobile device by using the Gallery or Music apps Connecting the devices Connect both your device and another device that support DLNA function to the same wireless network Make sure that ...

Page 57: ...other LG device or a tablet Sending files From the Gallery or other apps tap Share or then select a device on the file sharing list Receiving files Drag the status bar downward and then tap File sharing If your device does not support the file sharing feature on the home screen tap Settings Connected devices File sharing SmartShare Beam Make sure that your device is connected to the same wireless ...

Page 58: ... still sound Total silence Disable both the sound and vibration Select priorities Receive alarms and the notifications for the selected apps Calls from Set up a range of notifications when receiving a call Repeated calls Second call from the same caller within 15 min is not silenced Messages from Set up a range of notifications when receiving a message Use Do not disturb Turn on the Do not disturb...

Page 59: ...Useful Apps 03 ...

Page 60: ...ata you may be charged for data usage depending on your pricing plan SmartWorld may not be supported depending on the area or service provider Uninstalling apps Uninstall apps that you no longer use from your device Uninstalling with the touch and hold gesture Press and hold any empty area on the screen and then press of the app you want to delete Uninstalling by using the settings menu On the hom...

Page 61: ...rom now 1 On the home screen tap Management App trash You can also touch and hold an empty area of the Home screen then tap App trash 2 Activate the desired function Restore Reinstall the selected app Remove the uninstalled apps permanently from the device Uninstalled apps are automatically removed from the device 24 hours after they were uninstalled If you want to reinstall the uninstalled apps y...

Page 62: ...and hold an app icon such as Call Message Camera Gallery and Settings to display a quick access menu Use apps more easily through App Shortcuts Tap to set the widgets for the app Tap to check the app information This feature is available only on some apps ...

Page 63: ...ng a method of your choice Enter a phone number and tap Touch and hold a speed dial number Search for a contact by tapping the initial letter of a contact name in the contact list and then tap To enter when making an international call touch and hold number 0 See Adding contacts for details on how to add phone numbers to the speed dial list Making Calls from Contacts 1 On the home screen tap Conta...

Page 64: ... drag across the incoming call screen To send a rejection message drag the rejection message option across the screen To add or edit a rejection message On the home screen tap Settings Network internet Call Call blocking Decline with message When a call is coming in press the Volume Up Volume Down or Power Lock key to mute ringtone or vibration or to hold the call Checking an incoming call while u...

Page 65: ...variety of functions by tapping the on screen buttons Contacts View the contact list during a call Hold Place the current call on hold Dialpad Display or hide the dial pad Speaker Turn on the speakerphone function Mute Mute your voice so that your voice cannot be heard by the other party Bluetooth Switch the call to a Bluetooth device that is paired and connected End a call Access additional call ...

Page 66: ... on the home screen tap Call logs Then you can use the following functions To view detailed call records select a contact To make a call to the selected contact tap To delete call records tap Delete The displayed call duration may differ from the call charge Consult with your service provider for more information The deleted call history can not be restored Pinch two fingers or spread your fingers...

Page 67: ...e screen tap 2 Tap 3 Specify a recipient and create a message To use multimedia options tap To access optional menu items tap 4 Tap to send the message Reading a message You can view exchanged messages organised by contact 1 On the home screen tap 2 Select a contact from the message list While on the message list or chat window you can adjust the font size by placing two fingers on the screen and ...

Page 68: ...hoto or record a video to cherish all of your memorable moments On the home screen tap Before taking a photo or recording a video wipe the camera lens with a soft cloth Be careful not to stain the camera lens with your fingers or other foreign substance Images included in this user guide may be different from the actual device Photos and videos can be viewed or edited from the Gallery See Gallery ...

Page 69: ... The options displayed on the shooting screen may differ depending on the selected camera front or rear and camera mode The camera will turn off automatically if you do not use it for a while after running the Camera app You can run the camera app by short pressing the power key twice On the home screen tap Settings Extensions Shortcuts and then tap Open Camera to activate it When the screen is tu...

Page 70: ...nctions are provided by the high dynamic range HDR technology equipped in the camera Ultra wide shot distortion correction Corrects the screen distortion when taking ultra wide angle photos Grid Display guide grids so that you can take photos or record videos based on the horizontal and vertical reference lines Cheese shutter Allows you to take a photo by saying Cheese Smile Whiskey Kimchi or LG T...

Page 71: ...esture shot and Auto shot You can apply the make up effect when taking a selfie using the front camera Gesture shot is taken by recognizing the shape of a hand and Auto shot is taken by recognizing a face Mode Selection You can conveniently select from the modes displayed on the screen which are selected to suit the shooting environment Tap and swipe the camera modes left or right or swipe the scr...

Page 72: ...cord a video To take a photo while recording a video tap To pause the video recording tap To resume the video recording tap While recording a video you may spread or pinch two fingers to zoom in or out While recording a video you may tap the desired area to adjust the brightness 3 Tap to end the video recording ...

Page 73: ... Flash Jump Cut Photos taken at a regular interval are saved as GIF files 1 Tap then tap More 2 Tap to take a photo Photos are taken every 3 seconds and saved as a GIF file Tap on the screen to select the number of photos you want to take While taking photos tap to create GIF files with previously taken photos The flash automatically turns on to act as a timer The shots taken this time and the tot...

Page 74: ...st meet the eligibility requirements Contact YouTube for the requirements 1 On the home screen tap 2 Select More by swiping camera modes then tap YouTube Live 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 ...

Page 75: ...like landmarks posters restaurant menus animals flowers or barcodes directly in the device Auto Exposure Auto Focus lock You can fix the current exposure level and focus position by touching and holding the screen in the Auto mode To turn off the feature tap a blank area on the screen This feature is available only in specific modes ...

Page 76: ...ras swipe the screen up or down on the shooting screen in the Camera app Use the front camera to take selfies See Selfie shot for details Zoom in or out You may spread or pinch two fingers to zoom in or out when you take photos or videos Zoom in out function is not available in the selfie mode front camera This function is not supported in a number of modes ...

Page 77: ...lfies by using gestures Show your palm to the front camera and then clench your fist You can also clench your fist and then open it towards the front camera In three seconds a photo is taken To use this feature switch to the front camera mode then tap Selfie shot Gesture shot Make sure that your palm and fist are within the reference line so that the camera can detect them This feature may not be ...

Page 78: ...rval shot You can take selfies at an interval While using the front camera you can show your palm to the camera then clench your fist twice quickly Four photos are taken at regular intervals after a timer delay of three seconds Save as flipped Before taking a photo with the front camera tap Save as flipped The image is flipped horizontally When using the front camera you can change how selfies are...

Page 79: ... your device Viewing photos You can view the photos saved to the product 1 Tap and select a desired folder 2 Tap a desired photo The Gallery folder contains Photos Albums and Play Details menu appears when the screen is lightly touched Touching the screen once again makes the menu disappear ...

Page 80: ...st the sound volume drag the right side of the video screen up or down To adjust the screen brightness drag the left side of the screen up or down Dragging the screen to the left on the video play screen allows you to rewind REW and dragging to the right allows you to fast forward FF ...

Page 81: ...u can share files by using one of the following options While viewing photo or video tap to share the file by using the method you want If you take photos or videos after you tap Tag locations the location specific memories album is automatically created after a certain time under the Memories tab of Gallery Some file formats may not be supported depending on the installed software Some files may ...

Page 82: ... new movie by putting images and videos together 1 Tap and select Create movie 2 Select images or videos for your movie and tap Create movie 3 Edit the selected images and videos and then tap Save A maximum of 50 videos can be used to create a movie ...

Page 83: ... Select a picture to turn into a GIF photograph and then tap Create GIF You can add delete a photograph adjust the speed or screen ratio and set the photograph order Creating GIF photographs is a function provided for the user to produce creative images Violating rights such as intellectual property right or defaming the reputation of another person by using the creating GIF photographs function m...

Page 84: ... contact details and tap Save Importing contacts You can import contacts from another storage device 1 On the contact list screen tap Manage contacts Import 2 Select the source and target locations of the contact you want to import and then tap OK 3 Select the contacts and tap Import Adding contacts to the speed dial list 1 On the contact list screen tap Speed dial 2 Tap Add contact from a speed d...

Page 85: ...t the top of the Contacts screen and entering a contact or phone number brings up the integrated search results from the call history and contacts list saved onto the product Contacts list Editing contacts 1 On the contact list screen select a contact 2 On the contact detail screen tap and edit details 3 Tap Save to save changes Deleting contacts You can delete contacts by using one of the followi...

Page 86: ...w group QuickMemo QuickMemo overview You can make creative notes by using a variety of options on this advanced notepad feature such as image management and screenshots which are not supported by the conventional notepad This device supports the Active Pen AES2 0 Active Electrostatic Creating a note 1 On the home screen tap Essentials QuickMemo 2 Tap to create a note Save a note Undo the previous ...

Page 87: ... the status bar downwards and then tap The screen is captured and displayed as a thumbnail on the right bottom of the screen 2 To write notes on the screen tap 3 Write notes using the tools Zoom in or out or adjust the area to capture Write notes by hand Erase handwritten notes Undo the previous edit Redo the recently deleted edits Crop the screen as you desire 4 Tap and save the notes Saved notes...

Page 88: ...hile using an app such as Messaging and Chrome drag the notifications panel downwards and then tap Then tap to capture the entire screen you are currently viewing as a single file This feature is available only on some apps that support the scroll capture feature Pinch two fingers or spread your fingers apart to change the memo layout ...

Page 89: ...arm tap Delete at the top of the screen You can also touch and hold the alarm World clock You can view the current time in cities around the world 1 On the home screen tap Essentials Clock World clock 2 Tap and add a city Timer You can set the timer to trigger an alarm after a specified period of time 1 On the home screen tap Essentials Clock Timer 2 Set the time and tap Start To suspend the timer...

Page 90: ... tap Lap 3 Tap Pause to suspend the stopwatch To resume the stopwatch tap Resume To clear all the records and restart the stopwatch tap Reset Calculator You can use two types of calculators the simple calculator and the scientific calculator 1 On the home screen tap Essentials Calculator 2 Use the keypad to make a calculation If you want to calculate from the beginning tap and hold ...

Page 91: ...at exceed the size limit may cause an error Music files may be protected by international copyright owners or copyright laws You may have to obtain legal permission before copying a music file To download or copy a music file first check the copyright law for the relevant country This model supports Hi Fi audio playback Hi Fi audio files display the Hi Fi icon If you set the flashlight flashlight ...

Page 92: ... can only be registered when the product is in the standby mode Look for the ThinQ mark on the product to see if it can be connected to ThinQ app Tap to check various function of the ThinQ app FM Radio You can listen to FM radio On the home screen tap Essentials FM Radio To use this app first connect earphones to the device The earphones function as the radio antenna This function may not be suppo...

Page 93: ...tap Add tags Add under Location 2 Tap To pause recording tap 3 Tap to end the recording The file is saved automatically and the recorded files screen appears 4 Tap to play the recorded voice Tap to view the recorded files You can play a recorded voice file from the list Game Launcher You can set whether to use the game launcher where you can view the list of games installed on the product and sele...

Page 94: ...obile Switch If the app is not installed on the product download and install the LG Mobile Switch app from the Google Play Store 2 Follow the on screen instructions to select a desired method for transfer Data in a Google Account will not be backed up When you synchronise your Google Account Google apps Google contacts Google Calendar Google memo app data and apps downloaded from the Play Store ar...

Page 95: ...function first you must agree to usage of the function If you use mobile data you may be charged for data usage depending on your pricing plan 1 On the home screen tap Services RemoteCall Service 2 Connect a call to an LG Customer Service Centre 3 After the call connects follow the service associate s instructions to enter a six digit access number Your device is remotely connected and the remote ...

Page 96: ...ndar The Calendar app allows you to track your schedule of events that you created organised by Day 3 day Week or Month Chrome A fast simple and secure web browser built for the modern web Docs Docs is a collaborative word processing tool that powers productivity Use Docs to create edit and work together in real time Drive Drive is a file storage and sharing app that makes it easy to find share an...

Page 97: ...an share and save what matters Play Movies TV Use your Google Account to rent or purchase movies Purchase content and play it anywhere YT Music A new music streaming service from YouTube Sheets Sheets is a collaborative spreadsheet processing tool that powers productivity Use Sheets to import organise and analyse information together in real time Slides Google Slides is a collaborative presentatio...

Page 98: ...and get things done while on the go To get started just tap the Google Assistant key on the side of the phone or touch and hold the home button of the phone The Google Assistant is not available in certain languages and countries Files You can view and manage files saved on your device ...

Page 99: ...Settings 04 ...

Page 100: ...nd icon of the SIM card 2 SIM card color theme Change the colour themes for the SIM cards Cost save mode Activate or deactivate the cost save mode In the cost save mode if you make a call to a contact to which a specific SIM is assigned this SIM is used for the call even if the other SIM is active for example it is using mobile data Mobile data Select a SIM card you want to use for mobile data ser...

Page 101: ...ss for previously accessed Wi Fi networks If you do not want to automatically connect to a certain Wi Fi network tap the network and then tap Forget Wi Fi network settings On the settings screen tap Network internet Wi Fi Switch to mobile data If the mobile data connection function is activated but the device cannot connect to the Internet via Wi Fi connection the device automatically connects to ...

Page 102: ...may drain faster when using Wi Fi Direct Mobile data You can turn mobile data on and off You can also manage mobile data usage Turning on mobile data 1 On the settings screen tap Network internet Mobile data 2 Tap to activate it Customising mobile data settings 1 On the settings screen tap Network internet Mobile data 2 Customise the following settings Mobile data Set to use data connections on mo...

Page 103: ...vices via USB cable 2 On the settings screen tap Network internet Tethering USB tethering and then tap to activate it This option uses mobile data and may incur data usage fees depending on your pricing plan Consult with your service provider for more information When connecting to a computer download the USB driver from www lg com and install it on the computer You cannot send or receive files be...

Page 104: ... uses mobile data and may incur data usage fees depending on your pricing plan Consult with your service provider for more information More information is available at this web site http www android com tether wifi Wi Fi hotspot turn off timer When the Wi Fi hotspot has not been used for a specific period of time it is automatically disconnected You can set the time for automatic disconnection Blu...

Page 105: ...en this mode is on functions that do not involve data such as games and music playback remain available 1 On the settings screen tap Network internet Airplane mode 2 Tap Turn on in the confirmation screen Mobile networks You can customise the mobile networks settings 1 On the settings screen tap Network internet Mobile networks 2 Customise the following settings Network mode Select a network type ...

Page 106: ...tion screen appears Tap Change from the notification screen to activate the screen lock See Setting a screen lock for details 3 Enter VPN details and tap Save Configuring VPN settings 1 Tap a VPN from the VPNS list 2 Enter the VPN user account details and tap Connect To save the account details select the Save account information checkbox Private DNS You can configure the Private DNS Domain Name S...

Page 107: ...activate it Available devices appear automatically To refresh the device list tap Only devices set as visible are displayed on the list 3 Select a device from the list 4 Follow the on screen instructions to perform authentication This step is skipped for previously accessed devices Sending data via Bluetooth 1 Select a file You can send multimedia files or contacts 2 Tap Bluetooth 3 Select a targe...

Page 108: ...s about the NFC antenna area Sharing panel You can share contents from Gallery Music and File Manager with nearby devices Also you can share the content with specific people in apps that work with Google Direct Share 1 On the settings screen tap Connected devices Sharing panel 2 Tap to deactivate each option Nearby devices You can display the nearby devices to which you can share contents on the G...

Page 109: ...m Share files with other devices via SmartShare Beam Help You can view help on sharing files Printing You can connect your device to a Bluetooth printer and print photos or documents saved on the device On the settings screen tap Connected devices Printing Tap Default Print Service to search for printers you can connect to Or tap Add printer to manually add a printer Tap Add service to download th...

Page 110: ...call from a particular contact Flash alert for incoming call Set the flash to blink according to LG ringtone Do not disturb Set the time range and app type to receive notification messages Receive notification messages only on particular days of the week Sound quality and effects Use the function to set the sound quality and effects while playing a song or video Volume Adjust the sound volume for ...

Page 111: ... the settings screen tap Notifications 2 Customise the settings as desired Display You can customise detailed settings for each screen type On the settings screen tap Display and customise the following settings Home screen Customise settings for the Home screen See Home screen settings for details Navigation bar Set the style of the navigation bar with Gestures or Buttons only you can also change...

Page 112: ... brightness To automatically adjust screen brightness according to ambient light intensity tap the Auto switch Auto Set the device so that the screen brightness is automatically adjusted in accordance with the ambient light intensity Screen timeout Automatically turn off the screen when the device is left idle for a specified period of time Auto rotate screen Automatically rotate the screen accord...

Page 113: ...you lost your device Security update Check for software update and configure automatic installation settings Select screen lock Select the desired screen lock method See Setting a screen lock for details Customize Lock screen Change the information displayed on the locked screen Secure lock settings Change the secure lock settings Fingerprints Use your fingerprint to unlock the screen or content S...

Page 114: ...ge Install a secure certificate from a storage Clear credentials Delete user installed secure certificates and related credentials Set up SIM card lock Lock or unlock the USIM card or change the password PIN Phone administrators Allow privileges to restrict the control or use of the device to particular apps Trust agents View and use trust agents installed on the device Screen pin Fix the app scre...

Page 115: ... password address or credit card number with a single tap You can also disable this option use the Google Autocomplete feature or add a new service account Google Location History Allows you to enable or disable Location History When enabled Google periodically stores and uses your phone s most recent location data in connection with your Google Account From the Location History screen tap to view...

Page 116: ... game tools graphics and battery saving feature 1 On the settings screen tap Extensions Gaming 2 Customise the following settings Game Launcher Tap to use the game launcher Game tools You can run the function while playing games by touching the game tools icon among the home touch buttons Game graphics Adjust the game graphics When you change the resolutions on some games the screen display featur...

Page 117: ... use buttons such as the Lock Power Volume and Google Assistant to run certain apps or functions right away 1 On the settings screen tap Extensions Shortcuts 2 Customise the following settings Open Camera Press Power key twice to open Camera Open Screen off memo Press Volume Up key twice to open Screen off memo when the screen is locked or off Open Camera Press Volume Down key twice to open Camera...

Page 118: ... settings Battery usage View the battery usage details Adaptive battery Allow you to save the battery by stopping apps running in the background Background restrictions Enable this option to restrict background apps to save the battery while using the device Restricted apps for power saving may not work properly or may not send you notifications Battery saver Reduce battery consumption by cutting ...

Page 119: ...storage space and free space in the memory card This option appears only when a memory card is inserted To unmount the memory card tap Accounts You can add users to share your device and register a cloud account 1 On the settings screen tap Accounts 2 Customise the settings Digital Wellbeing parental controls You can view the product use time and set the timer for each app Also you can manage the ...

Page 120: ...ware update is available If available you can install the update Language keyboard You can customise language and keyboard settings for your device 1 On the settings screen tap System Language keyboard 2 Customise the following settings Language Select a language to apply for the device Manage keyboards You can change the product s basic keyboard setting set the use environments for LG Keyboard or...

Page 121: ...new service account Text to speech output Configure the settings for text to speech output Pointer speed Adjust the pointer speed of a mouse or trackpad Reverse mouse buttons Reverse the right mouse button to perform primary direct manipulation actions Date time You can customise date and time settings for your device 1 On the settings screen tap System Date time 2 Customise the settings Memory Yo...

Page 122: ...ay delete backup files saved in storage Make sure to copy and store the important backup files to your PC Google backup Change Google drive backup settings You can also check the backup account currently used or add a new backup account Restart reset You can reset the device including network and app settings 1 On the settings screen tap System Restart reset 2 Customise the following settings Auto...

Page 123: ...ttings reset Reset Wi Fi Bluetooth and other network settings Reset app preferences Reset the settings for an app The data saved in the app will not be deleted Factory data reset Reset all settings for the device and delete data Restarting and resetting your device deletes all data on it Enter your device name Google Account and other initial information again After data initialization the data ca...

Page 124: ...om Zoom in or out within a window and invert the colour Vision Large mouse pointer Magnify the mouse pointer Vision High contrast screen Turn the background colour into black for a high contrast screen Vision Screen color inversion Increase the display colour contrast for people with low vision Vision Screen color adjustment Adjust the display colour Vision Monochrome Switch the screen to grayscal...

Page 125: ...e mouse pointer in case of no movement Motor cognition Touch and hold for calls Answer or decline calls by touching and holding the call button instead of dragging it Motor cognition Screen timeout Turn off the screen automatically when the device is left idle for a specified period of time Motor cognition Touch control areas Limit the touch area so that only a particular portion of the screen can...

Page 126: ...Appendix 05 ...

Page 127: ...can back up contacts photos and more to the computer or update the device software See LG Bridge help for details The supported features may vary depending on the device LG USB driver is a necessary program to connect your LG smartphone with the computer and is installed when you install LG Bridge LG Bridge functions Back up data from the device to a computer or restore data from a computer to the...

Page 128: ...ou to conveniently update the firmware on your phone to a newer version from the Internet without needing to visit a service centre This feature will only be available if and when LG makes a newer firmware version available for your device Because the mobile phone firmware update requires the user s full attention for the duration of the update process please make sure you check all instructions a...

Page 129: ...ngs System Update center Software Update Check now for update Your personal data from internal phone storage including information about your Google Account and any other accounts your system application data and settings any downloaded applications and your DRM licence might be lost in the process of updating your phone s software Therefore LG recommends that you backup your personal data before ...

Page 130: ... screen is unlocked Add your Google Account on your device If your device is wiped but you have your Google Account on it the device can t finish the setup process until your Google Account information is entered again After your device is protected you ll need to either unlock your screen or enter your Google Account password if you need to do a factory reset This ensures that you or someone you ...

Page 131: ...ilable for download LG Electronics will also provide open source code to you on CD ROM for a charge covering the cost of performing such distribution such as the cost of media shipping and handling upon email request to opensource lge com This offer is valid for a period of three years after our last shipment of this product This offer is valid to anyone in receipt of this information Regulatory i...

Page 132: ...Duo Google Play Android Chrome Google Photos Google Play Protect Google Calendar Google Docs Google Drive Google Sheets and other related marks and logos are trademarks of Google LLC Bluetooth is a registered trademark of Bluetooth SIG Inc worldwide Wi Fi and the Wi Fi logo are registered trademarks of the Wi Fi Alliance All other trademarks and copyrights are the property of their respective owne...

Page 133: ...he performance of procedures other than those specified herein may result in hazardous radiation exposure To prevent direct exposure to laser beam do not try to open the enclosure or make direct contact with the laser DECLARATION OF CONFORMITY Hereby LG Electronics declares that this LM K420YMW product is in compliance with the essential requirements and other relevant provisions of Directive 2014...

Page 134: ...Appendix 133 Contact office for compliance of this product LG Electronics European Shared Service Center B V Krijgsman 1 1186 DM Amstelveen The Netherlands ...

Page 135: ...mmediately and contact an LG Customer Service Center You can purchase protective cases to protect your device from damage on the market Note that these protective cases are not covered under the warranty service provided by LG Electronics and safety is not guaranteed Aspect ratio This device uses 20 5 9 aspect ratio Some downloaded apps may not support 20 5 9 aspect ratio In this case select the m...

Page 136: ... calendar voice recordings Memos X Alarms X X Media data Photos videos songs documents Screen settings Home screen settings folders and widgets X X Lock screen settings screen lock settings excluded X X Apps Downloaded apps Personal data of the downloaded app X Others Public certificate X Settings Wi Fi Bluetooth Calls sound notification accessibility battery X X Some data may not be transmitted d...

Page 137: ...MA VIII 25 2dBm WCDMA I 24 7dBm LTE B28 25 2 dBm LTE B20 25 2 dBm LTE B8 25 2 dBm LTE B3 24 7 dBm LTE B1 24 7 dBm LTE B7 24 7 dBm LTE B40 24 7 dBm LTE B38 24 7 dBm BT 2 4GHz 6 98dBm WLAN 2 4GHz 13 09 dBm 18 27 dBm Travel Adapter Information can be found at http www lg com global support cedoc cedoc NFC ...

Page 138: ...fice for details of your nearest authorised WEEE collection point For the most up to date information for your country please see www lg com global recycling Disposal of waste batteries accumulators 1 This symbol may be combined with chemical symbols for mercury Hg cadmium Cd or lead Pb if the battery contains more than 0 0005 of mercury 0 002 of cadmium or 0 004 of lead 2 All batteries accumulato...

Page 139: ...ou have not set call barring for the number you are dialling Device cannot be turned on When the battery is completely discharged your device will not turn on Fully charge the battery before turning on the device Charging error Make sure device is charging at a normal temperature Check the charger and its connection to the device Use only in box accessories which are authorised by LG The battery d...

Page 140: ...If you take photos in dark areas at night or indoors image noise may occur or images may be out of focus If you have any problems reset the options The touch screen responds slowly or incorrectly If you attach a screen protector or optional accessories to the touch screen the touch screen may not function properly If you are wearing gloves if your hands are not clean while touching the touch scree...

Page 141: ...simply press and hold the Volume Down and Power keys until the device restarts Reset the device If the methods above do not solve your problem perform a factory data reset On the settings screen tap System Restart reset Factory data reset This method resets all settings for the device and deletes data Before performing the factory data reset remember to make back up copies of all important data st...

Page 142: ...ce are within the maximum Bluetooth range 10 m If the tips above do not solve your problem contact a LG Electronics Service Centre A connection is not established when you connect the device to a computer Make sure the USB cable you are using is compatible with your device Make sure you have the proper driver installed and updated on your computer Downloaded application causes a lot of errors Appl...

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