My cellphone's built-in battery was dead yesterday, so I sent the phone out for the repair.
I found that it is pretty troublesome to backup all the messages that was created by the App "Line" when every time the phone needs to be changed over to another one.
Although the App "Line" is very popular in Eastern Asia, and lots of people like to use it to communicate with each other no matter on life or business affairs.
But, to me, it is still not an ideal "IM (Instant Messaging)" App.

