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LINE is a messaging/call application.

I bought a new Android phone, and want to transfer LINE friends, chat history, call logs, groups, groups chat history, from my former Android phone.

How to do?

4

Official backup / restore solution for Android, introduced by LINE by 2018 for all regions

Limitations of this method

Restored: Chats, Contacts, Media not older than a few weeks

Not restored: Sealed letter messages, Group chats, Media older than a few weeks

Perform on old Phone

  1. Make sure you set an Email and Password for your LINE Messenger account
  2. In LINE, go to your friends list
  3. Open Cogwheel (top right)
  4. Open Chats
  5. Open Back up and restore chat history
  6. If Google account has Not set written below, click on it
  7. Choose your Google account and click OK
  8. Select Back up to Google Drive
  9. Make sure the date on Last backup is the current day and time

Perform on new Phone

  1. Install LINE Messenger
  2. Login with your Email and Password
  3. Go to the friends list screen
  4. Open Cogwheel (top right)
  5. Open Chats & Calls
  6. Open Back up and restore chat history
  7. If Google account has Not set written below, click on it
  8. Choose your Google account and click OK
  9. Choose Restore
| improve this answer | |
  • Note: This requires giving LINE the "Contacts" permission (you can create a separate Google account to prevent LINE from seeing all of your Google contacts). – Nicolas Raoul May 16 '18 at 3:32
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    I have pressed "Back up to Google Drive", and now "Last backup" shows todays' date and "Total size: 5.00 MB", but strangely the associated Google Drive account has nothing new (it is actually totally empty). Do you see a LINE backup file in your Google Drive? Just in case I checked my main Google account's Drive too, nothing new there either. I am checking with Google Drive's web interface so it is not a sync problem either. – Nicolas Raoul May 16 '18 at 3:34
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    That sounds correct, Google Drive stores app data without it being visible to the user. More info here: developers.google.com/drive/android/appfolder – Darcinon May 17 '18 at 22:07
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Warning: LINE only allows one active phone, and will destroy data on the old phone as soon as you log in on the new phone, so be sure to correctly perform this procedure BEFORE logging in on the new phone.

Fast procedure (requires rooted phones)

Warning: It seems that this procedure does not work well with letter sealing. If you don't have the LINE letter sealing option enabled, go ahead.

  1. If you don't remember your LINE PIN code, now is the last chance to change it, LINE will ask for it after you switch. Even if you never set one, it will ask you so better set it now.
  2. Root both of your Android phones, old and new (absolutely required)
  3. Install Titanium Backup (free) on both phones.
  4. On the old phone, make sure LINE is not running, launch Titanium backup, and backup LINE (App+Data).
  5. Copy the Titanium Backup folder (typically /sdcard/TitaniumBackup/) from your old phone to your new phone. It should contain 3 files or so.
  6. On the new phone, install LINE (don't start it yet), launch Titanium Backup and use it to restore LINE (App+Data). Press "Done", do not start it yet.
  7. On the new phone, install Root Browser, and use it to copy /data/data/jp.naver.line.android/databases/naver_line to your /sdcard/, then transfer it to a desktop computer (via ADB or email)
  8. Open this file in SQLiteBrowser, go to the Execute SQL tab.
  9. Type delete from setting; then press the Execute button. Click "Write changes" then exit, and copy the modified file back to /data/data/jp.naver.line.android/databases/naver_line
  10. Start LINE on the new phone and log in. All of your data will be just like you left it.

This restores your friends, chat history, call logs, groups, groups chat history.

Thanks to TechGravy for the procedure.

Slow procedure (no rooting needed)

If you are unlucky enough to have a phone that can't be rooted (the old one or the new one or both), then your only option is this:

  • One-by-one for each chat conversation, go to the conversation settings and backup it (Backup all) to the SD card (or email if you prefer).
  • Move the resulting files to the new phone in a folder called /sdcard/LINE_Backup.
  • Log into LINE on your new phone. This will destroy all history from your old phone, so only do it when all conversations have been backed up.
  • For each of your friends, go to the conversation, chat settings, and tap Import chat history, confirm.

In total this will take about 1 minute per friend if you are fast, for instance about 3 hours if you have 200 friends.

Warning: Groups chat history can not be restored by this procedure. This only restores friends, chat history, call logs, groups. Also, it loses any media older than a couple of weeks.

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  • This answer is essentially obsolete. I just transfered an account from one Android phone two another by just registering an E-Mail (account settings) on the old phone, then making a backup to google drive of the chat history. Login on your new device. Your contacts should be restored. Now restore your chat backup on the new device. Here the basic procedure is described recovery-android.com/social/carry-over-line-account.html – Grmpfhmbl Dec 15 '17 at 16:48
  • @Grmpfhmbl: Nice to hear that it has gotten easier! Could you please post an answer describing the procedure, as external pages tend to disappear? Thanks! – Nicolas Raoul Dec 18 '17 at 4:21
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    I found out (too late) that the backup/restore all chat option loses any media older than a couple of weeks. – Nick Westgate Oct 9 '18 at 22:02
  • @NickWestgate: Thanks for the tip, I integrated your info into the answer, is it correct? Thanks! – Nicolas Raoul Oct 10 '18 at 5:31
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Another "Fast procedure" for un-rooted phones is by using a 3rd party tool called Backuptrans Android Line Transfer. You need to follow these steps:

  • Connect both your Android Phones to computer via USB cable. (Make sure USB debugging is enabled on phone)
  • Run the Android Line Transfer program on computer. Choose the source device on the program and then click the "Transfer" icon.
  • Choose your target device and wait the transferring to be done.

That is it.

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  • 2
    I see "Personal Edition USD $19.95", there is no free version I guess? I looked for feedback about this tool, and find it strange that nobody on the Web is talking about it, Google only finds the product's download pages and your answer here. – Nicolas Raoul Apr 10 '16 at 8:24
  • My experience with Backuptrans Android Line Transfer was hit and miss. Backing up from a Samsung J7 went fairly smooth though the software is slow and lags a lot. Transferring the same backup to an OPPO F1S Plus didn't work, the phone was recognized but would not cooperate with the software. (Restoring to a different model may have went smoother but I didn't try). I then had to restore the back up to the J7 again which took 3 attempts. I spent 4 1/2 hours doing this whole operation. I think better doing it the Line chat by chat method could be better. Backuptrans Android Line Transfer is the r – David Gregson Dec 28 '16 at 10:23

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