[Please note the following for Android users]
If you encounter issues with the display of LINE or related applications, please try the following steps.
1) Update Android System WebView to the latest version via the Google Play Store
2) If the issue persists after updating Android System WebView, please also update your Chrome browser version.
Letter Sealing is a feature that applies end-to-end encryption to chat messages.
※ End-to-End Encryption: The message content on the server is encrypted, and only the sender and recipient can read the message content.
Only when both the sender and recipient users have enabled the Letter Sealing feature can encrypted chat messages with higher security be sent and received.
The encryption function of Letter Sealing applies to messages sent/received in chats, location information, and one-on-one free calls; in the future, other types of messages will also gradually apply the encryption function of Letter Sealing.
Additionally, if you use the LINE desktop version while the Letter Sealing feature is enabled, the system will require user confirmation the first time you send a message.
If you wish to use the Letter Sealing feature, please update the LINE application to version 5.3.0 or higher.
The data that can or cannot be transferred when moving accounts is as follows.
Data that can be transferred:
- "Friends" list (including groups)
- Content posted in "Notes" and "Album"
- Settings in personal information (profile picture / username / status message / ID)
- Dynamic messages / homepage
- Data saved in "Keep" (images or videos / text files / documents)
- Rights to use LINE stickers and themes (including gifted stickers)
- Purchase records of paid products and the balance of tokens / LINE Points
- Related content from LINE-linked applications (LINE GAME, LINE PLAY, etc.)
※ Please note: Token balances cannot be transferred to mobile devices with different operating systems (e.g., iPhone → Android, Android → iPhone, etc.).
Data that cannot be transferred:
- Chat history
"Using phone verification" is one of the ways to verify a phone number.
When you verify your phone number with LINE, if you cannot receive the verification code via SMS, you can try the following steps to use phone verification.
When verifying using "phone verification," you must enter the 4-digit verification code provided by the system's voice to complete the verification process.
※ If the "Use phone verification" option is not displayed on the screen, it is possible that the system has automatically completed the verification process for the phone number, or your current environment prevents you from using the phone verification function.
Steps to operate:
1) Open LINE and click "User Login" or "Register New Account"
2) Enter the country and phone number on the phone verification screen and click "Next"
3) Click "Use phone verification"
※ The system will call the phone number you entered to inform you of the verification code.
4) Enter the verification code provided in the voice instructions and click "Next"
Even if the balance of LINE tokens in your account is insufficient when purchasing stickers or themes, as long as you have enough LINE Points, you can purchase the products directly without manual redemption.
When using the following versions of the LINE application, the system will automatically redeem LINE Points for LINE tokens for you.
- iOS
LINE version: 6.8.5 and above
- Android
LINE version: 6.8.2 and above
If you wish to confirm your token balance, please click here via your smartphone to check.
The number of tokens displayed in "Remaining Tokens" includes the number of tokens that can be redeemed using LINE Points.
In addition, the LINE Points redemption rate varies by country; please refer to the FAQ explanation for the redemption rates of each country.
Explanation of token balance display (for example, in a country where 1 LINE token = 2 LINE Points):
- If you hold 60 LINE tokens and 80 LINE Points, the "token balance" will display 100 tokens.
- If you hold 10 LINE tokens and 100 LINE Points, the "token balance" will display 60 tokens.
- If you hold 0 LINE tokens and 100 LINE Points, the "token balance" will display 50 tokens.
- If you hold 0 LINE tokens and 90 LINE Points, the "token balance" will display 45 tokens.
If you cannot perform account verification via SMS or phone, you can also verify through your Facebook account.
Please refer to the following steps to perform the verification:
◆ Steps for verifying with a Facebook account ◆
1) After installing LINE, click "Register New Account" on the start screen
2) Click [Login with Facebook Account]
3) Log in on the Facebook screen
Through the Letter Sealing encryption feature, each user will have a dedicated key that enhances communication security.
In the LINE system, each user's key will be displayed as a unique and fixed string, which we call the "key fingerprint."
※ The actual key will not be displayed on the LINE screen.
By confirming a friend's account using the "key fingerprint," you can verify whether the chat messages between you and your friend have applied end-to-end encryption.
※ You can choose whether to use the "key fingerprint" feature.
For instructions on how to use the "key fingerprint," please refer to the following operational instructions.
Steps to use:
1. Open the chat room where the Letter Sealing encryption feature is applied
2. Click the "∨" in the top right corner of the chat room, then click "Settings" > "Encryption Key"
3. Compare the "key fingerprint" displayed on both you and your friend's mobile device screens
If the "key fingerprint" displayed on both your and your friend's mobile device screens is the same, it means that the chat messages in that chat room have been properly applied with end-to-end encryption.
Furthermore, when comparing "key fingerprints" with a friend, it is recommended to do so in person or through a communication method you trust.
If you want to move your current account, you must complete one of the following settings on the old phone.
If you do not complete the settings such as "Set up email account" or "Sync with Facebook" on the old phone, the original account cannot be moved.
Simply execute the "Backup Chat Records" operation within each chat room, and the system will automatically generate a backup file for the chat records and save it to the SD card or mobile device.
Before backing up chat records, please ensure there is sufficient space in the SD card and mobile device, and then follow the steps below.
Steps to back up chat records:
1) Click "Chat" and select the chat room you wish to back up
2) Click the "V" in the top right corner > "Chat Settings"
3) Click "Backup Chat Records"
※ If you choose "Back Up as Text File," stickers/images/videos/audio messages in the chat room will not be saved, and you will not be able to restore the backup file in the chat room.
※ If you choose "Backup All Content," all chat records in the chat room, including stickers, will be saved.
If you wish to restore the chat records in the chat room after moving accounts, please execute the "Backup All Content" operation in each chat room beforehand, following the steps mentioned above.
After changing the mobile device, simply perform the "User Login" operation and successfully move the account to restore the chat records in the chat room through the backup file saved by the "Backup All Content" operation.
For the steps to restore chat records, please refer here.
[Notes when changing mobile devices]
If the chat record backup file is stored in the internal memory of the mobile device, please move (copy) the backup file to an external storage device such as an SD card beforehand to ensure subsequent operations can be performed smoothly.
If you do not receive the SMS, please try resending the SMS or using phone verification.
Additionally, you can use your Facebook account to perform the verification. Please refer to the explanations in the common questions below for each operation step.
You cannot confirm the password required for moving the LINE account on your own.
If you are unsure of your password, please follow the steps below to reset your password.
Steps to reset your password:
1) Click "User Login" > "Forgot Password?" in order
2) Enter the email account set in LINE
3) Click "Confirm"
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