Com.sec.facatfunction: [verified]

The package com.sec.facatfunction (often appearing as FacAtFunction) is a pre-installed system application found on Samsung Galaxy devices. It serves two primary, interrelated purposes focused on device maintenance and biometric security. 1. Facial Authentication & Security

Safe Debloating: If you are using ADB to clean your device, expert consensus on platforms like Reddit's One UI community suggests leaving low-level security and factory function packages alone to avoid "bricking" your software [4, 6]. Related Samsung System Packages com.sec.facatfunction

3.3 Sensor Failures

• Auto-rotate stops working.
• Screen stays black during calls (proximity sensor dead).
• Compass in Google Maps spins wildly.

Possible Functions