Before installing an APK file downloaded outside of the official Google Play Store, Android requires you to grant permission. Open the app on your Android 4.2.2 device.
The main Facebook app requires Android 5.0 (Lollipop) or higher. For users stuck on Android 4.2.2 Jelly Bean, the Google Play Store either shows "Your device isn't compatible with this version" or hides the app entirely. facebook lite apk android 4.2 2