How to Install RayOS v2.0 for Samsung Galaxy A52 SM-A525F/M Android 11. RayOS v2.0 are built – Based on October 2021 update (A525FXXU4AUI3) developed by ShaDisNX255@XDA . Changelog: Release based on October security patch (A525FXXU4AUI3), Added CSC features (call recording, speed meter in status bar, etc), Compressed everything into a single zip (Dynamic Installer), Added • Read More »