Find the folder named com.rockstargames.gtasa that you just extracted.
The final path should look like: Internal Storage/Android/obb/com.rockstargames.gtasa/ .
The com.rockstargames.gtasa.zip file is a compressed archive containing the essential data files (OBB) required to run on Android devices. Because the game's high-quality textures and audio are too large for a standard APK file alone, this OBB (Opaque Binary Blob) package must be manually placed in your phone's system directory to make the game playable. What is Inside the Zip?
: Locate your com.rockstargames.gtasa.zip in your downloads folder. Use your file manager to "Extract" the contents. Move to the OBB Directory :
Move (or copy) this entire folder to the following path on your internal storage: Android/obb/ .
: Updates or patches for the mobile version. Step-by-Step Installation Guide