: Android 2.1 devices can no longer access the modern Google Play Store, making direct downloads from official sources impossible. Technical Challenges API Incompatibility : Modern Facebook updates (like version 548.x) target Android 11 (API 30)
Because Android 2.1 (API Level 7) is extremely old, you must use specific legacy versions released between 2011 and 2014. Newer versions will fail to install or crash immediately.
: Open your "Downloads" folder and tap the .apk file to begin the installation process. Better Alternatives for Older Devices