This article explains how to clear all LINE application data (including account information) using Android. It is not possible to log out on the app itself, but removing the app data will delete the information associated with the account and allow you to log out.
Steps
Step 1. Open the Android "Settings" application
Look for and tap the "Settings" icon (
) in the application list to open the menu.
Alternatively, you can drag your finger down from the notification bar at the top of the screen and tap the settings icon, located at the top
Step 2. Scroll down and tap Apps in the settings menu
A list of all the apps installed on the device will open.
On some versions, this option has other names, such as "App Manager", "Applications" or similar
Step 3. Scroll down and tap LINE on the list
A page entirely dedicated to information about this app will open.
Step 4. With the information page open, tap Storage
All the filing details associated with LINE will appear on a new page.
Step 5. Tap the Clear Data button
This will delete all data and information saved on LINE, allowing you to log out of all the accounts you have saved.
You will need to confirm this choice in a new pop-up window
Step 6. Tap OK on the confirmation pop-up window
This will delete all data on LINE, including information associated with your account, and you will be able to log out of your account.