If you’re unable to download the Facebook Lite or FB Messenger apps, you can still access Facebook Messenger on your Samsung Rex 70 using the Opera Mini browser.
Another way to access Facebook Messenger on your Samsung Rex 70 is by using a third-party messenger app that supports Facebook Messenger. One such app is the “FB Messenger” app, which can be downloaded from the Samsung Apps store.
Samsung Rex 70 Facebook Messenger Download: A Comprehensive Guide**