Go to Internal Storage > Android > obb .
I can provide the exact folder path tweaks needed for your device. Share public link Main.8.com.rockstargames.gtasa.obb File Download LINK
If your official download failed, you can find the file via unofficial community mirrors. You must match the OBB version to your APK version. Go to Internal Storage > Android > obb
Locate the downloaded main.8.com.rockstargames.gtasa.obb file (usually in the Downloads folder). Main.8.com.rockstargames.gtasa.obb File Download LINK