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https://github.com/numessanguis/naver_line_restore_chat_root

Merge your NAVER LINE chat history when you have an old database and a fresh install (Android - requires root).
https://github.com/numessanguis/naver_line_restore_chat_root

chat-application database line naver naver-line sqlite

Last synced: 11 days ago
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Merge your NAVER LINE chat history when you have an old database and a fresh install (Android - requires root).

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README 

        
日本語は下記を参照（予定）。



# NAVER LINE database merger

Restore your chat history by merging your backup to your new install of LINE.



## Requirements

- A ROOTed Android phone

- A previous backup & current copy of your `naver_line` database retrieved from `jp.naver.line.android/databases/naver_line`



## Use-case

You make a backup of your LINE app data, e.g. by setting-up [Syncthing](https://syncthing.net/).

Then you got a new phone and maybe your old phone has died.

You might have tried to keep all your LINE data with the method described here:

https://android.stackexchange.com/a/225948



But this failed or was not possible from the start.

Instead you installed LINE fresh and "lost your chat history", but you do still have your old `naver_line` db with your chat history.



Following the steps in this repo and executing the SQL effectively merges your old chat history with the `naver_line` db used in your current version of the LINE app.



## Execution steps

1. Download "DB Browser for SQLite": https://sqlitebrowser.org/

2. Open the latest `naver_line` DB with DB Browser

3. Click "Attach Database" in toolbar and select your old `naver_line`

    - When searching for your file, change "Files of type" to "All files (*)" (`naver_line` file has no extension)

    - Name it `old` when the dialog appears with "Please specify the database name ..."

4. Go to "Execute SQL" tab and copy+paste the SQL code found in: `sql/*.sql` in order



## Setting back new database

0. Close the LINE app and Force Stop (App info) it. Also turn-off wifi/internet

1. Copy the db file to your Android device's internal memory

2. With a file navigator app that has root access (e.g. "Total Commander"), go to your LINE app install location

    - Could be: `/data_mirror/data_ce/null/0/jp.naver.line.android/databases`

3. Select the db file `naver_line`, properties, and note down the UID & GID

4. With file navigator, go to your new merged db file `naver_line` and change UID & GID to what you noted down in the previous step

5. Rename the original `naver_line` in `jp.naver.line.android/databases` to e.g. `naver_line_bak`

6. Copy over your new `naver_line` to `jp.naver.line.android/databases`

7. Just to be sure, restart your device

8. Open the LINE app. At first you see nothing different, but if you scroll up in a chat your history is there!



### Notes

- Not sure how to recover images shared in chat yet.

    - Seems `storage/Android/data/jp.naver.line.android/storage/` might hold the clue

- Chats that haven't seen a new message since you reinstalled LINE do not show up (but have all your chat history)

    - These do appear if you select the chat from your home screen. The message will be shown as from 1970/1/1 though

- Search for old chat history seems broken :/ Even after you have openend an old chat.



# NAVER LINE データベース統合

TODO