Having issues with your Facebook Messenger app? Need to log out but can't find the log out button. No need to fret here are a few steps to log out and get it working once again.
Step 1: Settings
Locate your SETTINGS
Scroll down to APPLICATION MANAGER
Step 2: Messenger Data
Locate FACEBOOK MESSENGER
When it opens tap on the CLEAR DATA button: By clearing your data it removes your saved profile off of your phone/device.
Click OK to confirm delete
Step 3: Log Into Facebook Messenger
Once the data has been cleared, you will be able to log onto Facebook Messenger.
Hope this Instructable has been of help to you.