Chat-related issues

• I can't send/receive messages
• My chat history disappeared
• I can't send/receive/open photos/videos/voice messages
• Issues with backing up or restoring your chat history
• Chat list information is incorrect
• I suddenly became unable to send chat messages on LINE
• I suddenly became unable to use a feature
• I received a chat message saying "Start chatting with your new friend now!"
• The names of friends/groups appear as "Empty chat," "No members," or "Unknown"
• I'm not sure if my chat message was received because it isn't showing up as read
• The friends I invited to a LINE Schedule event aren't receiving my message
• I entered the wrong backup PIN on my new device