Connect your PSP to your PC. Move the .iso or .cso file into the ISO folder on your Memory Stick PRO Duo.
Because a direct port is impossible, modders have attempted to "bring San Andreas" to the PSP using existing game engines: GTA: Sindacco Chronicles gta san andreas iso psp link
When searching for download links, users often encounter high-risk content. The Real GTA San Andreas for PSP! Connect your PSP to your PC
with swapped textures, maps, and music to resemble San Andreas. gta san andreas iso psp link
There is no official for the PSP because the game was never released for that console.