Copy the original main.xxx.com.rockstargames.gtasa.obb to a separate folder on your SD card. This is your backup in case the mod fails.
Go to your phone settings > Apps > GTA: San Andreas > Clear Cache. Do NOT clear data. Launch the game. You should see Mexican textures and hear Spanish music. gta san andreas mexico apk android
Most files labeled "GTA San Andreas Mexico APK" that claim to be a complete, standalone game (meaning you don't need the original files) are often fake, viruses, or simply re-textured versions that crash constantly. Copy the original main
Delete the original OBB from the Android/obb/com.rockstargames.gtasa folder. Paste the new "Mexico Mod OBB" into that folder. GTA: San Andreas >