Since you cannot use the Play Store, follow these steps to sideload the app: Facebook (Android 5.1+) APKs - APKMirror
| Source | Key Features | Recommended For | | :--- | :--- | :--- | | | The official app store for Android, secure, automatic updates. | Not for Android 5.1 ; latest version (560+) is incompatible with old systems. | | APKMirror | High-security standard with signed APK verification. Extensive archive of old versions. The most recommended. | Finding the exact last compatible Facebook version for Android 5.1. | | APKPure | Fast, free, and secure downloads. Simple interface for browsing version history. | A reliable all-around source for APKs, including very old versions. | | Uptodown | Reputable alternative with a long history of providing safe downloads. | A good backup option if other sites are unavailable. | facebook para android 5.1 9 apk
Descarga siempre de sitios confiables para evitar malware. Since you cannot use the Play Store, follow