If you mistakenly delete a message on Facebook that you intend to keep, and you really want to get it back, the good news, you can get your deleted messages back, but the procedure might take you a while to get your messages back.
In this post, i will show you how to recover your deleted Facebook messages.
Step 1: Login your Facebook via PC web-browser like Safari, Google Chrome, etc. and navigate to Settings >> General >> Download a copy.
Step 2: Click on “Download a copy” button and click “Start My Archive” afterwards. Then you’ll receive an email to verify your Facebook identity. After that head for mail inbox and click on the given link to start downloading Archive file.