Here is the safest, most reliable method to get Facebook working on your Android 5.1 device.
The standalone Messenger app ended support for Android 5.1 even earlier than Facebook. To chat, you may need to install Messenger Lite (version 108.0 or older) or use the messaging feature inside the main Facebook APK. download facebook apk android 5.1
to run. Since Android 5.1 (Lollipop) is no longer officially supported, you cannot download the standard latest version from the Google Play Store. Here is the safest, most reliable method to
The app size is typically under 2MB, compared to over 60MB for the standard version. to run
Never download APKs from random websites, as they may contain malware. Stick to reputable sites that verify their files.
Two-factor authentication (2FA) or old TLS protocols. Fix: Temporarily disable 2FA on a newer device, log in on your Android 5.1, then re-enable 2FA.