You download a modified ISO and a "Save Data" folder (which contains the textures).
Search for "GTA San Andreas PPSSPP ISO" or "GTA San Andreas PSP Mod." Ensure you are downloading from a reputable community site to avoid malware. Gta San Andreas Ppsspp Iso File Download
Here’s a comprehensive write-up on , covering what it is, where to find it legally, how to set it up, and important precautions. You download a modified ISO and a "Save
: Click on the GTA San Andreas icon that appears in your library to start playing. Technical Tips covering what it is