[Android General] BillBauman:
Skip to How to Import Chat History below to skip the background reading.

Yes, there is a graphical import method for Line!

If you use Line, and you want to change between devices, it seems as though it is nearly impossible to backup (export) and restore (import) your Line chat history. I have searched XDA, Google, AndroidForums, Line's (useless) online help, etc. No help, no info. There are some guides about how to use a SQL editor to fool the app, etc., but that was just way too much effort for me, so I finally gave up and just switched. BUT, before I did, I went ahead and exported all my chats, even knowing there was no way to import them, just in case. Well, that just paid off.

There is absolutely no method available within Line to restore your chat history, right?! WHY is there a backup option? There MUST be a way! Seemingly no.

I just figured it out. And when I explain it, you too will wonder, why in the !#$%@^$@%!#@$!#$@^*%^&(*%^@# has Naver not published this?????

I was on my way to back everything up in preparation for a new ROM and figured I'd do a complete and total system wipe, meaning, I went to take a look at my internal storage (SDcard, Emulated, 0, whatever you refer to it as), to ensure that I got all the little things I want, like Viber pictures, WhatsApp pics, etc. And there I saw it. The folder. And, like you are now thinking, I thought, just maybe...

How to Import Chat History (Abbreviated, Quick and Easy)

Copy your chatHistory.zip file to internal storage sdcard/LINE_Backup

Start Line, open an existing chat or start a new chat with the person whose chat history you want to restore

Tap the drop-down arrow in the upper right, Chat Settings, and look what just showed up below the (formerly) useless Backup Chat History option

How to Backup and Restore Chat History (Additional Details)

Line offers a "Backup Chat History" option, but keep in mind, this is conversation / per-person specific. That means, you need to do it for each individual person.

For my own ease of use, and to make transferring things easy, now that I know what the process is, here's what I did.

Backing Up

Go into the conversation you want to backup.

Tap the drop-down arrow in the upper right, and select Chat Settings.

Select Backup Chat History, Backup All

Say Yes to e-mail this chat - in a previous version, I had to enter the conversation person's name in the subject, the new Line now does this for me.

Repeat this process for every conversation you want to migrate to a new device.

Restoring

On your new device, save the attachments from each e-mail into the /InternalSDCard/LINE_Backup/ directory.

Start Line, go to Chats, Tap the Chat Bubble in the upper right to start a new conversation, select the person you want to restore

Your chat window will be empty, but from here, you just follow the instructions above, basically, drop-down arrow, Chat Settings, Import Chat History

And that's it.

I REALLY hope this helps some people out. I wasted a LOT of time trying to figure this out, and as usual, once you know the solution, it's pretty simple and seems so obvious.

If I helped, throw me some Thanks button so I know I wasn't the only one!