Useful info- Premium Backup is only available to LYP Premium (Japan) or LINE Premium (Thailand) members.
If you still have your old device
Make sure you're using the latest version of LINE. (Update LINE to the latest version)Transferring your chat history to a new device running the same OS
First, check your old device to make sure that:• iCloud Drive is turned on (iOS only).
• There is enough free space in iCloud Drive/Google Drive.
• It's being used in an area with a strong network connection.
Next, follow the steps below to back up your chats:
1. Tap the Home tab >
> Chat history backup.2. Tap Back up now.
Note: You can confirm the PIN you set by tapping Backup PIN.
3. After your backup is complete, tap Transfer account and transfer your account with an easy transfer QR code.
Transferring your chat history to a new device running a different OS
You can automatically transfer your chat history from the last 14 days if you set a backup PIN.Note: If your new device is running a different OS, you cannot transfer your chat history from before the last 14 days that you backed up to iCloud Drive/Google Drive.
First, set a backup PIN on your old device.
Note: You can confirm the PIN you set by tapping Backup PIN.
Once you've finished backing up your chats, please transfer your account.
Depending on whether your new device runs the same OS as your old device, the data that can be transferred along with your LINE account will differ. Refer to Data that can be transferred for details.
If you no longer have your old device
Transferring your chat history to a new device running the same OS
If you backed up your chat history to iCloud Drive/Google Drive
You can transfer your chat history when transferring your account. See the following Help articles for details.Transferring your LINE account with a phone number
Transferring your LINE account with your Apple ID/Google account
Note: If you had a backup PIN set, you'll need to enter it. For details, see About the backup PIN.
If you didn't back up your chats to iCloud Drive/Google Drive but had a backup PIN set
You can transfer the last 14 days of your chat history. For details, see About the backup PIN.If you didn't back up your chats to iCloud Drive/Google Drive or set a backup PIN
Unfortunately, you will not be able to transfer your chat history.Transferring your chat history to a new device running a different OS
If you had a backup PIN set
You can transfer the last 14 days of your chat history. For details, see About the backup PIN.Note: You cannot transfer your chat history from before the last 14 days that you backed up to iCloud Drive/Google Drive.