Messenger For Android 4.4.2 - Facebook
: Go to Settings > Security and check the box for Unknown Sources to allow installation of apps from outside the Play Store.
Older devices often run out of volatile memory. Close all other open applications before launching Messenger, and avoid using heavy custom keyboards, which occupy large slices of system RAM.
If you want to attempt this method, you must find a version of Messenger released around 2015 to early 2018, which was the last window of functional support for API Level 19. facebook messenger for android 4.4.2
Have you tried running modern apps on KitKat? Let me know in the comments.
Older versions lacks modern patch updates, leaving your data vulnerable to exploits. : Go to Settings > Security and check
in your browser settings, you can bypass app-compatibility hurdles. Key Considerations Security Risks
However, the clock is ticking. Start planning your upgrade or migrate to browser-based messaging. Until then, happy chatting — and long live Android KitKat. If you want to attempt this method, you
Since the standard app won't work through regular channels, you have a few alternative options: Operating systems that support the Messenger app - Facebook
Before installing, navigate to your device's Settings > Security and check the box next to Unknown Sources to allow installations outside the Play Store.