Beyond Dawlish

If you're using an Android device and want to fix deleted messages on Messenger, try the easy steps I've listed below: 

Using File Explorer

-In cases where the Microsoft Office installation file is not on the internet, Open the file explorer on your device. 

-One, be sure to go to the section which is called SD Card and Device Storage. 

- Locate the Data folder. 

-Second, select Cache and, after that, click on it. 

-As we can see, the option to look out for is called "fb_tempfile”. All of your deleted or archived communications are in this folder. This made them very easily accessible if they were placed in this folder. 

To learn more, go to: https://techyvibe.net/how-to-recover-deleted-messages-on-messenger/