This happens when Facebook detects an unusual login attempt.
Fix: Open mbasic.facebook.com in an incognito/private tab. Log in and complete any security checkpoint (e.g., "Is this you?" or 2FA code). login facebook lite link
Launch Chrome, Opera Mini, UC Browser, or any default browser on your phone. Login Facebook Lite Link
If mbasic.facebook.com is blocked or redirects improperly, try these official fallbacks: https://mbasic
https://mbasic.facebook.com/login – Direct login page.https://touch.facebook.com – Another legacy lightweight interface.https://facebook.com/login – Standard mobile login, then manually switch to “basic mode” via settings.Because the Lite link is a web-based interface, it is marginally more vulnerable to "Man-in-the-Middle" attacks on public Wi-Fi than the standard app.
Follow these rules:
https:// (the S is for Secure).