If you are having problems sending or receiving messages, please try the following steps.
1. Update your LINE app from the URL below. http://line.me/update
2. Restart your device.
3. Go back to the list of chats, then open the chat you are having problems with again.
Please note that sometimes it may take a while for a chat message to show up after you receive the notification.
Your chat messages are saved in the LINE app on your device. For this reason, you cannot restore missing chat messages if:
• You deleted the chat they were in.
• Your device has changed (e.g. because you had it repaired or switched to a new device).
• You deleted (or uninstalled) the LINE app.
However, you can restore your chat messages if you backed them up beforehand.
If you backed up your messages, you can restore them even if they were deleted from a chat. To do so, uninstall and then reinstall the LINE app.
Note: When you uninstall the app, all of your chat messages are deleted from your device.
You cannot restore chat messages that weren’t successfully backed up, or that weren’t backed up at all.
We strongly recommend regularly backing up your important chats. For information about backing up and restoring your chat history, see this Help article.
It may take some times to send, receive, and display images, videos, and audio messages. Images are only stored on our servers for a certain period of time, after which they can no longer be received. We are unable to provide details about how long images are stored.
By tapping the thumbnail received in a chat, you can save the image in your LINE app. To save it in the default gallery app on your device, please tap Save after opening the image.
Images saved in the LINE app will become unavailable if you delete the app's cache using a cache clearing app.
For problems with images, videos, and audio messages, please try the following.
1. Close all running apps.
2. Restart your device.
3. Update your LINE app from the URL below. http://line.me/update
4. Update your OS.
5. Delete any unneeded apps and data on your device.
If you're having issues with creating, inviting friends to, or leaving a group chat, please search this Help article. If your issue is with a group's notes or albums, please see this Help article.
If you're experiencing another issue with group chats, please try the following trouble shooting tips:
We respect your privacy above all else, and your sent/received messages and other information are treated with the highest level of security. LINE has established strict internal rules to ensure that your messages are protected.
Nothing you send or receive can be viewed by LINE or any third parties not participating in a chat.
With LINE, chat rooms are automatically created for recently added friends. "Start chatting with your new friend now!" is always the first message in these chats.
Also, if you or your friend turn the "Allow others to add me" setting ON, your chat room may be recreated and appear at the top of your chat list.
If a chat with a friend you haven't messaged recently appears at the top of your chats, it may be because that friend turned their "Allow others to add me" setting ON.
Rest assured that this message does not mean an account is being impersonated or has been stolen.
"Unread messages below" is a bookmark-like feature that appears in chats with one or more unread messages. It shows where your Read messages end and your Unread messages begin.
Note: "Unread messages below" does not appear in chats with LINE official accounts.
3. Edit the photo or video any way you like and tap the paper airplane icon to send it.
You can use the following tools on the editing screen.
Filters (the three-ringed icon)
Choose from a variety of filters to alter the mood of your photos and videos.
Crop (the square icon)
For photos, tap the crop icon to trim them and focus on a certain area. For videos, tap the scissors icon to trim the part of the video you want to send.
Doodle (the pen icon)
Draw with pens of various colors and thicknesses or add shapes.
Pixelate & blur (the pixelate icon)
You can pixelate or blur photos by tapping the relevant icons.
Text (the "T" icon)
Add text to photos and videos in the color and style of your choice.
Stickers (the sticker icon)
Add emoji, the current date and time, your location, and stickers to your photos and videos.
Note: You can use the stickers listed below.
• Creators' stickers
• Some LINE official stickers
Avatars (the Avatar icon)
Add Avatars to photos and videos. You can use your own Avatars or ones that were shared by friends. For more information about Avatars, see this Help article.
Note: Avatars are not supported on Android-x86 or Android OS versions earlier than OS 6.
To share messages, photos, or videos to friends or groups:
1. Tap the chat room with the message, photo, or video you want to share.
2. Tap and hold the message, photo, or video, then tap Share > Share.
Note: You can send multiple contents at the same time.
3. Select a recipient and tap Share, or choose an option at the bottom of the share screen.
You can send a message together with the content if you're sharing it with a friend or group. Just enter your message in the text box, then tap Share.
You can also share a single photo/video that was sent in a chat (or a group of multiple photos that were sent together) by tapping the Share with icon next to it.
With LINE, you can take photos and videos (using filters, effects, and Avatars, if you like) in chats or on LINE VOOM. There are also lots of other convenient features for editing your content. For information about editing photos and videos, see this Help article.
To take, edit, and send photos or videos:
1. Tap the Chats tab > the name of the chat you want to send content in.
2. Tap the camera icon next to the text box.
3. Tap the round shutter button at the bottom center of the screen.
Note: You can switch between photo, video, Avatar, and Text scan mode by tapping or swiping on your camera screen.
4. Edit the content any way you like and tap the paper airplane icon to send it.
You can use the following tools on the camera screen.
Flash (the lightning bolt icon)
Turn your camera's flash ON or OFF.
Effects (the glitter icon)
Apply a variety of effects, including ones that recognize and move with your face.
Note: You can select from many more effects by tapping the four-ringed icon.
Switch cameras (the rotating circle icon)
Switch between your rear-facing camera (for selfies) and forward-facing camera (for shots of the scene in front of you).
You can check all of the content that has been shared in a chat at once. Just tap the menu icon at the top of the chat screen and select Photos & videos, Links, or Files.
From Photos & videos:
Tapping Select at the top right of the screen lets you choose photos and videos to share or delete. You can also save them to an album, your device, or Keep. It's also possible to save a group of photos in a chat all at once by tapping one of the photos > the save icon at the bottom of the screen.
Swiping left or right on the photo or video you're viewing lets you see other photos or videos in the chat.
You can also jump to the message in which a photo or video was sent by tapping the date at the top of it.
From Links:
Tap a link to go to that website. You can also tap "..." to the right of the link for the Copy link, Share, and Jump to message options.
From Files:
Tap "..." to the right of a file for the Share and Jump to message options.
You can check the content you sent to your Keep Memo chat on Keep.
If a chat message you sent doesn't appear as read and nothing else appears by it, it may be due to one of the following reasons.
Your network connection is unstable
With an unstable network connection, it may take some time for a chat to show up as read.
The recipient didn't see the message due to their use of the LINE app
If the person you sent the chat message to changed devices, reinstalled LINE, or accidentally deleted their chat history before checking the chat, they may not have noticed that they received the message. If the read mark still doesn't appear after some time has passed, try sending the message again or asking the person if they received it using a method other than LINE.
If an icon appears next to the chat message you sent, check its status by referring to this Help article.
If there is an issue with a chat message that you sent, one of the following icons will appear. (Messages that were sent successfully will have no icon or the read mark next to them.)
Left-pointing arrow icon
This icon may appear if your smartphone's network connection is unstable. Try sending your message in an area with a strong network connection.
Resend icon
If your message couldn't be sent due to a network error, a button to resend it will appear. After letting some time pass, try sending the message again by tapping the resend icon > Resend.
Exclamation point icon
This icon appears next to messages that were sent while an error was occurring with the server for sending/receiving messages. After letting some time pass, try sending the message again by tapping the exclamation point icon > Resend.
If you still have your old device, you can transfer your most recent chat history to your new device by backing it up.
Transferring your chat history to a new device running the same OS
First, check your old device to make sure that:
• There is enough free space on your device or in Google Drive.
• It's being used in an area with a strong network connection.
To back up your chat history:
1. Tap the Home tab > Settings > Back up and restore chat history under Backup and transfer.
2. Tap Back up now.
If you cannot back up your chat history to Google Drive, you can automatically transfer your history from the last 14 days by setting a backup PIN. See this Help article for details.
Transferring your chat history to a new device running a different OS
If your new device is running a different OS, you will not be able to transfer your chat history, even if you back it up on your old device. However, you can automatically transfer your chat history from the last 14 days if you set a backup PIN. For the steps to do so, see this Help article.
If you've already set a backup PIN, open LINE on your old device and tap the Home tab > Settings > Back up and restore chat history under Backup and transfer > Backup PIN and display your backup PIN.
Depending on whether your new device runs the same OS as your old device, the data that can be transferred will differ. For details, see this Help article.
By registering a backup PIN beforehand, you can automatically transfer your chat history from the last 14 days when you transfer your LINE account, even if you can no longer use your old device due to loss or damage.
Note:
- To transfer your chat history in this way, you need to update LINE to version 12.13.0 or later.
1. From the Home tab, tap Settings > Back up and restore chat history under Backup and transfer.
2. Tap Back up now or Create backup PIN and back up chat history.
3. Enter a six-digit number.
4. Tap the arrow.
Keep a memo of the backup PIN you set so you don’t forget it, as you'll need it to restore your saved chat history when you transfer your LINE account.
To prevent your backup PIN from being used by someone else without your permission, also make sure that it is difficult to guess.
Here are some tips for setting a hard-to-guess backup PIN:
• Don't use consecutive numbers (e.g. 123456).
• Don't use the same number repetitively (e.g. 111111).
You cannot restore your chat history with your backup PIN if you enter it incorrectly 10 times.
If you don't have any chat history backed up or you no longer have your old device and you enter your backup PIN incorrectly 10 times, there will be no way to transfer your chat history to LINE on your new device.
If you've checked everything above but can't back up your chat history with Google Drive, see this Help article.
Even if you're unable to back up your chat history, you can restore your history from the last 14 days if you set a backup PIN beforehand. For the steps to do so, see this Help article.
If you want to restore your chat history after changing devices, you need to back it up in advance.
Before backing up your chats, be sure to:
• Turn Google Drive ON.
• Update LINE to the latest version.
Note: Photos and stickers sent in chats cannot be backed up or restored. If there are photos you'd like to save, consider saving them to Albums or Keep.
There are two methods available for backing up your chats to Google Drive.
Manually back up chats to Google Drive
Use this option to manually back up your chat history whenever you need to. For more information, see this Help article.
Automatically back up chats to Google Drive
Choose how often you want your chats to be automatically backed up. For more information, see this Help article.
You won't be able to back up your chats if you don't have enough free space on your device or Google Drive. Be sure to regularly check how much free space you have and whether your chats were successfully backed up or not. For information about clearing space on Google Drive, see this Google Drive Help page.
If you can't back up your chat history to Google Drive or if you're transferring your account to a new device with a different OS, you can automatically transfer your history from the last 14 days by setting a backup PIN beforehand. See this Help article for details.
If an auto-backup fails because you don't have enough free space on Google Drive or your device, one of the following error messages will appear in a notification from the app or on the settings screen.
Note: You will not receive a notification if an auto-backup fails for another reason.
• "Backup failed at XXXX on XXXX. Not enough free space on Google Drive."
• "Backup failed at XXXX on XXXX. Not enough free space on your device."
If you receive a notification like the ones above, or if you find that you cannot do a periodic backup in the LINE app, make sure that you have enough free space on Google Drive and your device, then try again.
You can back up and restore your chat history using Google Drive by following the steps below.
Important:
- Before backing up your chat history, make sure you have enough free space on your device and Google Drive.
- Be sure to try the following steps in an area with a strong network connection.
- The Back up and restore chat history option is only available on devices that can use Google Drive.
To back up your chat history:
1. From the Home tab, tap Settings > Back up and restore chat history under Backup and transfer.
2. Tap Back up to Google Drive.
3. Tap OK.
Note: Images and stickers are not backed up with your chat history, so we recommend saving any important images in Albums or Keep.
For details about automatically backing up your chats, see this Help article.
To restore your chat history:
1. From the Home tab, tap Settings > Back up and restore chat history under Backup and transfer.
2. Tap Restore.
3. Tap OK.
If you can't back up your chat history to Google Drive or if you're transferring your account to a new device with a different OS, you can automatically transfer your history from the last 14 days by setting a backup PIN beforehand. See this Help article for details.
When you transfer your LINE account to a device with a different OS (e.g. iOS to Android or vice versa), you can only transfer your chat history from the last 14 days.
To transfer your chat history to a device with a different OS you need to have either:
• Your previous device on hand.
• Already set up a backup PIN.
If you have your previous device on hand, see this Help article for the steps to transfer your LINE account.
For information on how to set up a backup PIN beforehand, see this Help article.
To delete all of the data from your chats
1. Tap the Home tab > Settings > Chats.
2. Tap Delete data.
3. Tap Delete next to the content you want to delete, or tap Delete all data > Delete.
To delete data from individual chats
1. Go to the Chats tab and tap the relevant chat > the menu icon > Other settings.
2. Tap Delete data.
3. Tap Delete next to the content you want to delete, or tap Delete all chat data and messages > Delete.
You can also see a list of your chats in order of how much data they use (from most to least data) and delete their data from there. To do so, tap the Home tab > Settings > Chats > Delete data > Delete data by chat.
Note: Once data is deleted, it cannot be restored.
If you want to restore your chat history after changing devices, you need to back it up in advance.
To automatically back up your chats to Google Drive, follow the steps below.
Note: For information on manually backing up your chats, see this Help article.
1. From the Home tab, tap Settings > Back up and restore chat history under Backup and transfer.
2. Turn Enable auto-backup ON.
3. Select how often you want to back up your chats.
Your chats will be backed up automatically when you stop using your device and its screen has turned off.
Note:
- Your device needs to be connected to the internet and plugged into an outlet when the auto-backup refresh starts.
- If you can't use a Wi-Fi connection, you can still back up your chats with Use mobile data selected.
If an auto-backup fails, you'll receive a chat notification from the LINE official account. For more information about this notification, see this Help article.
If you can't back up your chat history to Google Drive or if you're transferring your account to a new device with a different OS, you can automatically transfer your history from the last 14 days by setting a backup PIN beforehand. See this Help article for details.
To restore your chat history after transferring your LINE account, you need to back it up beforehand. For the basic ways to back up your chat history, see below.
iOS users:
You can use iCloud to back up your chats. See this Help article for details.
Android users:
You can use Google Drive to back up your chats. See this Help article for details.
Even if you can no longer use your old device (eg. because it was lost or damaged), you can enable your account to automatically transfer your chat history from the last 14 days. For the steps to do so, see this Help article.
If an error appears when you try to back up your chat history, see the Help articles below.
To watch a YouTube video that was shared in a group chat:
1. Tap Share screen in call on the YouTube video preview message shared in the chat.
2. Select Voice call or Video call to start a call and watch the video with chat members.
Note: If you played a YouTube video in a chat, tap the screen share icon to share it.
If you have URL previews turned OFF, the Share screen in call option will not appear. For information about setting URL previews, see this Help article.
Note: The Share screen in call button at the bottom of YouTube video preview messages is only processed and created on your device, and not on LINE's servers.
1. Tap the menu icon at the top of the chat screen.
2. Tap Other settings >Create group, or Create a group to use next to Albums/Notes.
3. Select the friends you want to add and tap Next.
4. Enter a name, set a profile photo, and then tap Create.
Note: Messages from the multi-person chat will not be transferred to the group. To view your past messages, you'll still need to check the multi-person chat.
You can delete messages in chats so they don't appear on your device anytime.
Important: Deleting messages by following the steps below will only delete them on your device, and they will still be visible to any other users in the chat room.
To delete a message:
1. Tap and hold the message you want to delete.
2. Tap Delete or Delete messages.
3. Tap Delete and confirm by tapping Delete once again.
You can unsend messages so that other users can no longer see them if 24 hours haven't passed since they were sent (regardless of whether they have been read or not). For more information about unsending messages, see this Help article.
Note: Tap here to open the Privacy settings from your smartphone.
With the Filter messages setting turned on, you will no longer receive messages from strangers, but you also will not receive messages from any acquaintances that are in your Friend recommendations.
To block messages from LINE Game apps:
1. Go to the Home tab > Settings > Notifications > Authorized apps.
2. Tap the game you want to block messages from.
3. Turn off Messages and/or Notifications. Note: - If you turn off Messages, you will not receive messages but will continue to receive any gifts your friends send you. - If you turn off Notifications, you will still receive LINE messages but will not be notified when they arrive.
Tap here to open the Authorized apps screen from your smartphone.
You can unsend a message within 24 hours of sending it. This removes the message so that it can no longer be seen by anyone in the chat where it was sent, even after it has been read. To unsend a message, just tap and hold it, then select Unsend.
Important:
- Even if you unsend a message, everyone in the chat will still be able to see a notification saying that you unsent it.
- Anything (e.g. text messages, photos) deleted in a chat room cannot be unsent.
- We will not be able to recover or unsend anything deleted from a chat room.
You can unsend text messages, stickers, photos, videos, voice messages, songs shared from LINE MUSIC, URLs, contact information, location information, and files.
Note: This feature cannot be used for call histories from LINE version 9.17.0 and later for Android.
Key fingerprints are unique encryption keys that Letter Sealing gives to each user so they can send messages to one another safely and securely.
Note: The actual keys are kept secret and will not appear in LINE chats.
If your key fingerprint matches your friend's, it means your chat is securely encrypted. To check whether your key fingerprints match, follow the steps below.
Note: Key fingerprint confirmation is optional.
1. Tap the menu icon at the top of a chat screen.
2. Tap This chat is protected with Letter Sealing at the bottom of the screen.
3. Compare the key fingerprints on your device and your friend's device.
Note: To compare key fingerprints with your friend, we recommend meeting face-to-face or using a form of communication you trust.
If "This chat is protected with Letter Sealing" doesn't appear, it means Letter Sealing is turned OFF. To turn Letter Sealing ON, follow the steps in this Help article.
If you're trying to verify your identity so you can use Letter Sealing on LINE for PC, but the verification code entry screen isn't appearing in LINE on your smartphone, restart the smartphone app and try verifying your identity again by referring to this Help article.
To check whether a chat is protected with Letter Sealing, tap the menu icon at the top of the chat screen. If Letter Sealing is turned ON, you'll see "This chat is protected with Letter Sealing."
Note: You'll also see a lock icon at the beginning of the sentence.
If "This chat is protected with Letter Sealing" doesn't appear, see this Help article.
Letter Sealing is a feature that provides end-to-end encryption (E2EE) for chat messages. E2EE is a communication system designed so that messages saved on our servers are encrypted and cannot be read by anyone except the sender and receiver of the message.
Once the sender and receiver have both turned on Letter Sealing, they will be able to start sending messages with added security.
The following information will be encrypted:
• Text messages (not including messages sent through other services like YouTube)
• Location information
• 1-on-1 voice/video calls
Note: We plan to expand Letter Sealing’s functionality in the future.
If you use LINE for PC with Letter Sealing enabled on the smartphone version of LINE, you will be required to verify your identity the first time you send a message.
For information about verifying your identity to use Letter Sealing on LINE for PC, see this Help article.
Letter Sealing is now turned on by default when you download LINE. As part of our efforts to strengthen the app's security, we've made it so this setting can no longer be turned off.
If you've been using LINE since before these specification changes were made and have Letter Sealing turned off, you can protect your messages by turning Letter Sealing on manually from the smartphone version of LINE.
To turn Letter Sealing on:
1. Tap the Home tab > Settings > Privacy.
2. Turn ON Letter Sealing.
Tap here to go to the Settings menu from your smartphone.
If you see any of the following messages after transferring your account on a smartphone, you may not be able to view past chat messages.
- "This message can't be decrypted"
- "This message wasn't backed up and restored from your previous device. Unfortunately, there's no way to read it on your current device."
- "Unable to display message as it couldn't be decrypted."
If any of these messages appear and you cannot view your past chat messages, there is unfortunately no way to re-display them. In this case, please ask the other person in the chat to send you any old messages that you need.
The messages above appear when:
• You transfer your account to a device with the same OS (e.g. iOS to iOS) without backing up and restoring your chat messages.
A LINE Schedule event can only be deleted by the person who created it. Also, events will be automatically deleted if they aren't updated within one month of the last date that they were edited.
Send Message to Respondents allows you to send a chat message to all your friends that replied to your event invitation. However, if a respondent is not your friend on LINE you will not be able to send them a chat message.
If friends you invited to an event appear on the Recipient List screen but aren't receiving your message, they may have the setting to receive notifications from unauthorized apps turned off.
Try having your friends follow the steps below to receive your message.
LINE Schedule lets you make plans with your friends.
To use LINE Schedule:
1. Open a chat and tap "+" at the bottom of the screen > Schedule.
2. Enter the event name and details, then tap Pick Dates.
3. Select the dates for your event and tap OK.
4. Tap Invite Members.
5. Enter/edit your message and tap Send.
You can check your friends' RSVP statuses and send messages to respondents by tapping View now in the message you sent or LINE Schedule at the bottom of the message > the event you scheduled.
On the Event Details screen, you can tap:
• The pencil icon at the top of the screen to edit the event.
• Invite to invite friends who aren't in the chat to the event.
• Copy link to copy and share the event link in other chats/places.
A message will appear in the chat room announcing that the poll has closed once the set closing date has ended, or if the creator of the poll chooses to end it.
If you're having issues with notifications, you may be able to resolve them by canceling your device's battery settings. To do so, follow the steps below.
Note: These steps and labels may differ depending on your Android OS version and device.
To turn OFF your battery saver schedule:
1. Go to your device's Settings, then search for and tap Battery saver.
2. Tap Set a schedule.
3. Select No schedule.
To remove background restrictions:
1. Go to your device's Settings, then search for and tap LINE.
2. Tap Background restriction.
3. Tap Remove.
To turn OFF battery optimization:
1. Go to your device's Settings, then search for and tap Battery optimization.
2. At the top of the screen, tap Not optimized, then select All.
To set up LINE notifications, follow the steps below.
Note:
- These steps and labels may differ depending on your Android OS version and device.
- On some devices, the default sound may play instead of the LINE notification sound.
Android OS version 9.0 or later
LINE settings:
1. Tap the Home tab > Settings > Notifications.
2. Check the box next to Notifications at the top of the screen.
3. Tap Notification settings.
4. Turn Show notifications ON.
5. Tap Message notifications.
6. Turn Show notifications ON.
7. Turn each setting ON or OFF as needed.
Android OS versions 8.0 - earlier than 9.0
LINE settings:
1. Tap the Home tab > Settings > Notifications.
2. Check the box next to Notifications at the top of the screen.
3. Tap Notification settings.
4. Turn ON the setting at the top of the App notifications screen.
5. Tap Message notifications.
6. Turn ON the setting at the top of the Notification category screen.
7. Tap Importance and select Urgent.
8. Turn Sound, Vibrate, or any of the other settings ON or OFF as needed.
Android OS versions earlier than 8.0
You need to configure notifications on both your device and LINE.
Device settings:
1. On your device, tap Settings > Application Management or Apps.
2. Tap LINE in your list of apps.
3. Check the Notifications settings.
Note: Make sure that Block all is turned OFF.
LINE settings:
1. Tap the Home tab > Settings > Notifications.
Note: Tap here to go to LINE's Notifications settings on your smartphone.
2. Check the box next to Notifications at the top of the screen.
3. Turn Sound, Vibrate, or any of the other settings ON or OFF as needed.
To change your notification sounds, follow the steps below.
Note: These steps and labels may differ depending on your device.
Android OS version 8.0 or later
1. Go to the Home tab and tap Settings.
2. Tap Notifications.
3. At the top of the screen, check the box next to Notifications, and turn Notification settings ON.
4. Tap Add LINE notification sounds to device > Allow. Note: LINE notification sounds cannot be installed on some devices.
5. Tap Message notifications.
6. Configure each of the following settings:
• Turn Message notifications ON.
• Tap Importance and select High or Urgent.
• Tap Sound and select a notification sound.
To delete the LINE notification sounds added to your device, tap Remove LINE notification sounds from device > OK.
Android OS versions earlier than 8.0
1. Go to the Home tab and tap Settings.
2. Tap Notifications.
Note: Tap here to go to LINE's Notification settings on your smartphone.
3. At the top of the screen, check the box next to Notifications.
4. Check the box next to Sound, then select a notification sound.
To display message notifications on your device's lock screen, you need to turn lock screen preferences ON in your device's settings, and then turn LINE notifications ON. For the detailed steps, see below.
Note: Menu displays may differ depending on your device.
• Device settings:
1. On your device, tap Settings.
2. Tap Security & location.
3. Under Device Security, tap Lock screen preferences.
4. Select any lock screen notification settings other than Don't show notifications at all.
• LINE settings:
1. Go to the Home tab and tap Settings.
2. Tap Notifications.
3. At the top of the screen, make sure that the box next to Notifications is checked, and that Notification settings is turned ON.
4. Tap Message notifications.
5. Configure each of the following settings:
• Turn Message notifications ON.
• Tap Importance and select Medium or over.
• Tap On lock screen and select anything other than Do not show notifications.
Tap here to go to LINE's Notification settings on your smartphone.
You may get notification messages from the official accounts of companies. These are messages for telling you things like package delivery dates and when monthly bills are due.
The name of an official company account has a gray, blue, or green icon next to it. To make sure that a notification message is from an official account, check to make sure it has an icon with one of these colors.
Notification messages let you receive helpful information without having to add the official accounts of individual companies.
Note: This feature is turned on when you tap Agree on the "Regarding Usage of Your Information" screen. For the steps to change your consent settings for providing data, see this Help article.
Only notification messages that we have determined to be valid and appropriate are sent out to users, and messages will not be sent for the purpose of advertising.
How notification messages work
First, a company sends a message transmission request to LINE's servers based on a customer's phone number. A notification message is then sent to the account of the LINE user with that phone number registered.
The phone number sent from the company is hashed, and the information that LINE Corporation receives is only used for the purpose of verifying the message recipient, after which it is promptly deleted.
There may be times when we need to verify your identity via text message before we can send a notification or in order to confirm notification content which includes details like your personal information.
Requirements for sending notification messages
Notification messages are sent when they meet the three requirements below:
• The phone number sent from the company matches one registered to an existing LINE account.
Note: We verify your phone number every 180 days for security.
• The LINE account has the Receive notification messages setting turned ON.
• The LINE account has not blocked the official account of the company sending the notification message.
If you received a message not from a company's official account but from someone you don't know, see this Help article for the steps to stop them form messaging you.
To change your settings for receiving notification messages, follow the steps below on the smartphone version of LINE.
1. Tap the Home tab > Settings.
2. Tap Privacy.
3. Tap Provide usage data.
Note: If you don't see Provide usage data, try restarting your device after changing its language settings (e.g. from the current language to Japanese and back).
4. Tap LINE notification messages.
5. Turn Allow LINE notification messages ON or OFF.
Turning off Allow LINE notification messages off will make it so you are unable to receive notification messages from any company's official account.
If you don't want to get notification messages from the official account of a certain company, please block that company's official account.
If your smartphone is running Android 12 and you connect a Bluetooth device, you may experience issues such as:
• Being unable to hear friends in LINE calls.
• Being unable to make voice/video calls.
You may be able to resolve these issues by changing your Bluetooth permission settings. To do so, try following the steps below.
Note: The names in your settings and the order of these steps may differ depending on your device.
1. Go to your device's Settings > Apps.
2. Tap LINE > Permissions.
3. Tap Nearby devices > Allow.
If changing your Bluetooth permission settings doesn't resolve the issue, try the troubleshooting tips below.
• Pair the Bluetooth device with your device again.
• Turn your device's Bluetooth setting off and then back on several times.
• Turn off any other Bluetooth devices connected to your device.
• Recharge the battery on your Bluetooth device.
Note:
- We cannot guarantee that Bluetooth devices (e.g. smartphone accessories, earphones) will function normally, as this is dependent on the performance of your smartphone.
- If none of the troubleshooting tips above resolve the issue, please contact the manufacturer of your smartphone or Bluetooth device directly for further assistance.
Notifications for incoming and outgoing voice and video calls may not appear correctly depending on the strength of your device's signal. Be sure to use a stable network connection.
You may also have issues if your notification settings are not configured correctly. For more information, see this Help article.
Calling or chatting with users on different mobile service carriers is also free. LINE will not charge you, even if you are calling a friend in a different country or using the service while you are traveling.
However, like all other apps, you will be charged by your mobile service carrier for the data that you use. Depending on your price plan, you may be charged each time you connect to LINE, so we recommend using a flat-rate data plan.
Note: With a flat-rate data plan, you will generally not be charged additional data fees when using a 3G, LTE, or Wi-Fi connection. For more details, check with your mobile service provider.
Bluetooth devices can be used with LINE. Please understand, however, that we cannot guarantee such devices will work properly, as they rely on the performance of your smartphone.
Up to six people can be shown on the same screen when making a group video call. You can switch to other participants by swiping left or right on the screen.
Note: Up to 500 people can participate in a video call.
Select and double tap a friend to see their full screen video. To switch another friend to full screen video, swipe left or right on the full screen video or the participants at the bottom of the screen.