Facebook's automated systems sometimes flag legacy app logins as "suspicious," forcing a password reset or 2FA challenge.
Facebook Messenger is a standalone messaging app that allows users to send text messages, make voice and video calls, and share files with friends and family. It's a popular app with over 1 billion active users.
Android 4.4.2 devices have limited storage. Frequently clear the app cache in Settings to keep it running smoothly.
