Go to Settings > Security and check the box for Unknown Sources to allow installation of apps from outside the Play Store.
Open your "Downloads" folder, tap the file, and follow the prompts. Important Considerations facebookapk for android 422
: This is the official "lightweight" version of the app. It is designed to work on older Android versions and slower networks. You can find the latest version on the Google Play Store or download it directly as an APK from trusted repositories. Go to Settings > Security and check the
How to Install Facebook on Android 4.2.2 (Jelly Bean) in 2026 If you are still using a classic device running Android 4.2.2 Jelly Bean tap the file