: Even if you successfully install an old APK, Meta's servers often block logins from extremely outdated versions, displaying a "version too old" error. Parsing Errors

: If Messenger specifically fails to log in, Facebook Lite often includes a built-in messaging feature that works on Android 2.3.6. Source : Official Facebook Lite 🛠️ Installation Guide for Android 2.3.6

Still rocking a classic Gingerbread device? 🍭 While the standard Messenger app has moved on to Android 5.0+, you don't have to lose your chats!