How do I save my WhatsApp chat history?
You can save your chat history by sending your conversations via email.
- Open the chat you wish to email in WhatsApp.
- Select Options > Chat History > Email.
Your chat history will be attached to the email as a .txt file.
Note: In order to email your chat history you need to have a memory card. If you remove your memory card or delete WhatsApp, you will lose your chat history.
Unfortunately there is no chat history backup system on Nokia S40 phones, so there is no way to recover lost chat history data.
WhatsApp Support Team