LG K31 - Tutorials & Guides

Getting started

Understanding the device buttons and features
Explore an interactive view of the Home screen and buttons on your device. Learn about various icons, buttons, and features on the front of your device to find where they're located and what they do.

Getting to know the back of your device
Discover features on the back of your device with an interactive view. Learn the location of your camera, buttons, and more.

Inserting and removing the SIM card
Learn how to insert and remove a SIM card from your device. Your cellular service is activated through your SIM card; without it you cannot use cellular features. Note that a SIM card tray removal tool may be needed.

Inserting and removing the SD card
A microSD card can increase your available storage, providing additional room to store photos, videos, music, documents, and more. Learn how to insert a microSD card into your device.

Turning your phone on and off
Turning your device off and on is called "restarting" your device. Restarting your device is a common first step in troubleshooting any device issues. No saved information will be lost during a restart.

Setting screen security
Screen locks secure your device and protect your device from being accessed by other people. Removing your security lock will allow anyone to be able to access your device. Note that if your device is requesting a PUK code, you will need to contact your carrier to unlock your device.

Unlocking the screen
Learn how to unlock the screen on your device. You can change your lock screen to have different types of security locks, including pattern, pin and password. Your device may automatically lock after a certain amount of time depending on your screen timeout settings. Ensure that you remember the code for unlocking your device; if you forget your unlock code you may lose the information on your device.

Charging your device
Learn how to charge your device to avoid running out of battery power. Keeping your device's battery well-charged will allow you to use it throughout the day without interruption.

Home screen

Navigating multiple Home screens
Your device may have multiple home screens. You can switch between different home screens by swiping from edges of your device. You can use the home button to jump to the main home screen.

Using the Notification panel
Alerts and notifications are displayed in the notification panel. Familiarize yourself with how to view and clear the notifications that you have received from your notification panel.

Changing the wallpaper
The background image for your device, also known as the wallpaper, can be changed in settings. You can use your own image as a wallpaper or choose from the default images on your device. You can change the lock screen and home screen backgrounds.

Changing the theme
Changing the theme of your device will adjust the look of your whole device, not just the home screen wallpaper. Themes can change the wallpaper, text size, and more.

Adding apps and widgets to the Home screen
Widgets allow you to do things such as preview upcoming events, see recent emails, and get quick access to your favorite contacts. Widgets are also known as modules and help you keep important information at the tips of your fingers.

Adjusting apps and widgets on the Home screen
You can move and resize your widgets to be the most convenient for you. Learn how to adjust widgets on the home screen or move them to a new home screen.

Removing apps and widgets from the Home screen
Remove unused widgets to free up room on the home screen of your device. Widgets can be added back later if needed.

Changing an icon's appearance
You can change the icons for apps on your Home screen to customize the look of your Home screen.

Adding folders to the Home screen
Combine apps into folders so they are in easy to manage app groups. You can name app folders to for help organize them.

Adding and deleting Home screens
Learn how to create or remove homescreens to further personalize your device. New home screens can be used for widgets or apps. Change the home screen to best suit your needs.

Changing the default Home screen
You can change the default home screen on your device. Your default home screen is the main home screen that your device loads when it first starts up or when you press the Home button while on the home screen.

Adding and changing a Lock screen shortcut
Some apps can be accessed quickly from your lock screen. You can change the apps that appear on the lock screen for quick access.

Using shortcuts to unlock the screen
Some apps can be accessed quickly from your lock screen. You can change the apps that appear on the lock screen for quick access.

Adding emergency information to your Lock screen
Emergency contact information can be added to your lock screen. In case of emergency, someone can look at your emergency information to discover who to contact for you. Your emergency phone information can appear on your lock screen.

Customizing your Notification panel
Learn how to edit your notifications panel to customize it to your needs. You can rearrange the icons in the notification panel.

Restarting your phone
Learn how to turn your device off and back on again. Restarting your device is often the first step when troubleshooting a device issue.


Switching to Easy Mode
Switch to Easy mode for simplified Home screens on your device. You will be able to switch back to standard mode if you choose to do so.

Navigating multiple Home screens
Your device may have multiple home screens and switch between them to see different apps on the home screens. You can use the home button to jump to the main home screen.

Placing a phone call
You can make a phone call while in Easy mode on your device either by dialing in the number or by selecting a contact.

Adding and removing contacts from favorites
While in Easy mode, your Home Screen will have a page for all your favorite contacts. You can add and remove contacts from your favorites page.

Accessing and clearing the Notification panel
Discover how to access and clear the Notification Panel while in Easy mode on your device.

Switching back to Standard Mode
See how to switch back to Standard mode from Easy mode on your device. You can switch back to Easy mode later if you change your mind.


Capturing and Drawing on a QuickMemo™
Learn how to draw on a screenshot and capture real time notes using the QuickMemo feature.

Adding Text to a QuickMemo
Use your phone's QuickMemo+ app to save text, memos, lists, and more.

Sharing a QuickMemo
Share your memo's from the QuickMemo+ app to share text, memos, lists, and more.


Multitasking between apps
Learn how to manage your open applications. You can switch between and close any apps that are running on your device. You can also see all of your currently running apps by accessing the Recents screen.

Using picture-in-picture
With the Picture-in-Picture function of your device, you can keep a minimized version of some apps open while you navigate the rest of your device.

Using Multi window
You can multitask with two applications on your device by using split screen. This will allow you to have two apps open at once.


Accessing settings
Your device settings lets you change options for things such as alert sounds, turn on or off GPS, adjust network settings, change the time, and more.

Changing the language
The default language of your device can be changed. You can also add additional languages if you are multilingual.

Adding an account
You can set up all of your email accounts on your device. When an email account is set up on your device you will be able to receive notification for incoming emails, check your email, as well as send email from the accounts on your device.

Removing an account
You are able to remove any email accounts that you have set up on your device. Removing an email account from your device does not delete the email account.

Changing the ringtone
You can personalize the sound your device makes when you receive a phone call, email, or text message. Learn how you can change your default ringtone.

Setting the phone to silent
Silent mode will quiet your device's notifications. When your device is in silent mode, it will not make a sound to notify you of incoming notifications. You can set it to vibrate to alert you to incoming notifications with vibrations instead of sound.

Using power saving mode
Use emergency power saving mode when your device is low on battery and you still need to be able use some functions on your device.

Adjusting the screen timeout and brightness
Changing the length of time before the lock screen shows up, known as screen timeout, and brightness of your device can impact your battery life. Decreasing the time of inactivity before your device goes to sleep and lowering the brightness of your device can help extend your device's battery life.

Managing data usage
Monitor your data usage by checking it in Settings. You can set up data alerts to warn you if you are approaching your limit and set data limits to prevent overages.

Reducing data usage by turning on data saver
Using the Data Saver function on your device can help you lower the amount of data you use. Data Saver will prevent some apps from sending or receiving data in the background.

Changing roaming settings for a trip
When traveling internationally, your device settings may require an update to conserve data and minimize unwanted fees. Learn how to change your roaming settings on the device ahead of your next trip. You can enable or disable roaming at any time

Configuring location settings
Sharing your GPS location with applications such as Maps can be turned on or off. You can change these location settings across your entire device or per app.

Turning Airplane mode on and off
Airplane mode, also sometimes referred to as flight mode, can be used to quickly disable cellular service, Wi-Fi and Bluetooth connectivity while flying.

Managing the battery
Learn how to manage the battery on your device. Taking care of your battery will extend your battery life.

Managing the device memory
Clearing your device's memory can help improve your device's speed to make it go faster. Your device may become slow because it is low on memory.

Managing app power usage and force closing apps
You can set battery usage allowances for certain apps on your device. If an app is using too much battery life or is behaving incorrectly, you can force stop the application.

Changing account settings
When you set up an email account on your device, it may also sync your contacts or your calendar to your device. You can change those settings to only sync the data from the account that you want on the device.

Backing up and restoring your phone
It is a good idea to back up your device's information to the cloud regularly in case something happens to your device. Backing up your device's data to the cloud can make it easier to set up your new device.

Resetting network settings
If you are having trouble connecting to the Internet you may need to reset your network connections. Resetting your network connections will disconnect any Bluetooth devices connected to your device and disconnect your device from any Wi-Fi networks it is connected to.

Resetting all settings
Reset your device's apps to their factory defaults if you are having trouble with your device; personal information will not be deleted. This can be a step in troubleshooting.

Performing a factory reset
A factory reset will erase all data from your device and is irreversible. This is good to do if you are going to trade in or sell your device. It will wipe all of your personal information from the device.

Enabling USB debugging
Turn on USB Debugging to help trouble shoot your device. Once USB Debugging is turned on, you will be able to plug your device into a computer to access your device's logs.

Checking for and installing system updates
Keep your phone up to date by checking for new software regularly. A new Operating System (also known as an OS) version may have security patches and performance improvements for your device.

Change permissions for apps on your device
Learn how to find and change permissions for an application.

Phone calls

Teaching kids how to call 911
Teach your children how to dial 911 in the event of an emergency. They may need to know how to unlock your device.

Using speakerphone
You can change a call to have the caller's voice come out of the speaker instead of the earpiece. This can allow you to talk on the phone hands free.

Calling a new number
Using the dial pad in your device's phone app, you can call a new phone number that is not associated with a contact.

Calling a contact
Use your saved contacts to call them instead of typing out their number from memory.

Using handsfree calling
Using the Google voice assistant widget, you can ask your device to call a contact or phone number for you. The Google voice assistant allows you to use your device hands free.

Returning to a call
While on a phone call, you can navigate back to your home screen and use your device as normal without hanging up the phone call.

Switching between calls
While on a phone call, you may receive a second phone call. You can put one phone call on hold and talk to other other and switch between them.

Ignoring a call and replying with a text
If you are unable to take a phone call, you can ignore the phone call and reply with a text to let the caller know you are unable to talk at that time.

Viewing a missed call and adding it as a contact
If you miss a phone call you can view it in your Recent call log. You can add it as a contact, call it back, or review the number.

Changing call settings
Learn how to change the call settings on your device. You may need to change the phone settings if you are roaming or if you want to turn Wi-Fi Calling on or off.


Setting up personal email
Set up your personal email account on your device so that you can access your email messages, send new emails and more. You can have mutliple email accounts on your device.

Setting up corporate email
Set up a corporate email account on your device so that you can check and send work email on the go. You can add multiple email accounts to your device.

Sending an email
You can send emails from your device from any email account that has already been set up on your device. An email can contain an attachment or just text.

Attaching a file to an email
Learn how you can attach pictures, videos, etc. to emails when sending an email with your device. By attaching files to your email, you can share photos by email to your contacts.

Replying to an email
You can set your device to notify you when you get an incoming email to one of the email addresses set up on your device. From the email notification in your notification panel, you can reply to the email without opening the app.

Forwarding an email
Using an email address that has been set up on your device, you can forward emails to others from your device.

Sending an email to a group
An email can be sent from an email address set up on your device to multiple email addresses or contacts as a group email.

Switching between email accounts
If you have multiple email addresses set up on your device, you can switch between them in your device's email app.


Adding a contact
Create a new contact to store that person's information on your device. In addition to saving their phone number, you can store information like email, address, and more to each contact.

Assigning a picture to a contact
Set pictures to the contacts on your device to make it easier to tell who a text, email, or phone call is from at a glance.

Assigning a ringtone to a contact
Customize your contacts to have unique ring tones to make it easier to tell who a text, email, or phone call is from by sound.

Creating a group and adding contacts to It
Create a group to combine contacts that you typically contact together. You will be able to select the group as you would a contact for text messaging.

Adding and removing contacts from favorites
Update your favorites list to keep your favorite contacts easily accessible. Removing contacts from your favorites list does not remove them from your device.

Sharing a contact's information
Easily share contact information with others using your device's share contact functions. You can share the exported file in various ways including email or storing it on an SD card.

Importing and exporting contacts
Import your contacts from a vcf file or from your SIM card. A vcf file can be exported from your old device and imported to your new device.

Syncing account contacts
Some accounts that you have on your device will allow you to sync contacts from the email address to your device.


Sending a text
Compose and send a standard SMS message with your device's text messaging app. You can send a text message to an individual or a group.

Sending an audio message
Discover how to send a text message with your voice using the speech to text feature on your device.

Replying to a text
Text messages that come into your device will appear in your notification panel. Learn how you can view the messages that arrive in your notification panel and respond to them.

Forwarding a text
Learn how you can forward a sent or received text or multimedia message to another contact or phone number.

Attaching a file to a text
By adding a file, such as a photo or video, you will turn your SMS message into a MMS message (multimedia text message). You can send a multimedia text message to an individual or a group.

Sending a text to a group
Learn how you can send a text message or multimedia message to a multiple contacts at once. You can attached a picture, video, or other media file to a text message.

Changing message settings
Change the text messaging settings for your device. You can change your notification settings, change your default SMS app, auto-download MMS text, and more.

Deleting conversations
Learn how to remove a text from your device. Removing a text message from your device will not remove it from the device of your correspondents.

Wireless connections

Connecting to a Wi-Fi network
Connecting to a Wi-Fi network can decrease your usage of cellular data. Learn how to join a Wi-Fi network. Note that you may need to enter a password to connect to a Wi-Fi network.

Pairing with a Bluetooth® device
Connect to other deivces via Bluetooth to share media such as music or videos. Bluetooth devices can be anything from your stereo in your car to a keyboard to type on your mobile device with.

Setting up mobile hotspot
Set up your device as a Mobile Hotspot so you can share your data connection with other devices. Your device will create a Wi-Fi hotspot with its data connection. Other devices will be able to connect to the Wi-Fi hotspot.

Accessing mobile network settings
When traveling internationally, your device settings may require an update to conserve data and minimize unwanted fees. Learn how to change roaming settings on your device ahead of your next international trip, including how to enable and disable roaming.

Web browser

Navigating to a website
Use a browser on your device to access and navigate the internet. You can search the web or enter a URL to go directly to a webpage.

Searching the web using your voice
Using the Google voice assistant widget, you can ask your device to search the web for you using your voice without having to touch your device.

Bookmarking a website
Customize your web browsing experience by bookmarking websites that you frequently visit for quick access.

Using web browser windows
You can switch between multiple tabs inside your web browsing app. This allows you to keep several websites open at once to quickly switch between.

Clearing browsing data
Learn how to clear your web browsing history for the browser on your device.

Changing web content settings
You can change settings on your device's web browser such as the search engine it uses, auto-fill form information, saved passwords, and more.


Taking a picture
Pictures taken with your device will be saved in a gallery or photos app. You can adjust settings of your device's camera before taking the picture.

Recording a video
Learn how you can record a video with your device's built in camera app.

Accessing the camera from the Lock screen
You can get to your device's camera app from the lock screen using the lock screen shortcut for camera. This allows your to take a picture without unlocking your device.

Taking a picture while recording a video
Using your device's built in camera app, while recording a video you can also take a picture.

Zooming in and out
Zoom in or out while taking a video or before taking a picture to make the subject of your shot look the best.

Turning the flash on and off
You can update the preferences for your device's flash while taking a picture. The flash can provide light to a low light picture to make the subject more visible. You may want to turn off flash if you are in an area that prohibits the use of flash.

Changing the file size of pictures and videos
In the camera app's settings you can change the resolution of the pictures or videos your device will take. A lower resolution photo will take up less space on your device but may not look as good as a high resolution photo.

Taking a selfie
Learn how you can use the front facing camera of your device to take a selfie picture or video.

Capturing and viewing screenshots
You can take screenshots of what is on your device. Screenshots can be viewed and shared like pictures.

Sharing photos
Share photos and videos with others via Bluetooth, text message, email, Facebook and more.

Transferring photos to an SD card
Move photos and videos to your SD card to free up space on your device. You will also be able to easily transfer videos and picture to a new device using the same SD card.

Changing the picture storage location
You can store pictures and videos on your device or on an SD card. Saving pictures and videos on your SD card frees up storage space on your device and makes it easier to transfer them to your new device.


Using TalkBack
Use the TalkBack function on your device to help you navigate it by touch. The device will speak what is on the screen an you can tap anywhere on the screen to tap the item that is being spoken.

Using screen magnification
Use the magnification box to enlarge certain parts of your screen. This option can be toggled on or off in your accessibility settings.

Adjusting your font size
Learn how to change your font size to make it easier to read. You can increase your font size or change the font used.

Adjusting your display size
You can change the display size on your screen to be larger or smaller. The display size will change the size of everything on the screen, not just the font size.

Using accessibility shortcuts
Accessibility shortcuts allow you to have direct access to certain device functions from the shortcut option. These can include swiping actions or button actions.

Google Play™ Store

Downloading an app or widget
Download and install apps or widgets to add functionality that doesn’t come pre-installed on a device. Apps can be in a category such as social media, health, navigation, productivity and more. Widgets include calendar widgets, weather widgets and more.

Uninstalling an app or widget
Remove applications or widgets to free up space on your device. Once you remove an application or widget you will not be able to use it again unless it is downloaded again.

Changing store settings
Explore the settings of your device's app store. Depending on your device you can change things such as video autoplay, when to use cellular data to download an app, parental controls, and more.


Setting up Google Assistant™
You can ask the Google Assistant to send emails, send texts, or start phone calls for you. In order to use the Google Assistant it needs to be set up first.

Using your feed
Your Google feed can be customized to show you information that is relevant to you. It can show you news articles, weather, sports scores, driving time estimations, and more.

Using voice actions
Using your Google Assistant, you can use voice commands to perform certain actions like sending an email or starting a phone call hands free.

Planning your day
Your Google Assistant can be set up to perform certain tasks automatically after being given a voice command. It can help with home automation or tell you how long it will take to get to work.

Searching your photos
Your Google Assistant can search your Google Photos library for pictures or videos using voice commands.

Google Maps™

Using turn-by-turn navigation
The Maps application can help guide you to your destination with turn-by-turn navigation. You can also use the Maps app to search for nearby places such as restaurants or grocery stores.

Searching locally
You can search for restaurants or other businesses that are near you and then filter them based on criteria such as rating or price.

Viewing current traffic
You can view different layers in the Maps app such as traffic or satellite. Each layer can be turned on or off.