Viber chat history is gone after upgraded to version 5.4.1 on iPhone. No backup, how to retrieve back previous conversation. They are important!
I have upgraded Viber (messaging apps) to latest version, version 5.4.1. I found all my conversation has gone and disappear, including chat history. I have many important conversations by using Viber, please guide me on retrieve back the previous conversations and chat history. I don't backup my iPhone since January 2015, cannot restoring from iTunes/iCloud. I am using iPhone 5s with iOS 8.3.
iPhone 5s, iOS 8.3