The most common "GTA IV PSP" files are actually heavily modded versions of GTA: Liberty City Stories or GTA: Vice City Stories . Modders swap textures, change the HUD to look like GTA IV, and replace the protagonist with Niko Bellic.
to run the actual Windows version of GTA IV, though this requires a high-end phone. Official Mobile Releases : Rockstar Games has official mobile versions for San Andreas Liberty City Stories Cloud Gaming gta4pspdownloadiso fixed
It looks like you’re trying to format a proper post title or filename for (or a similarly named fan project) — possibly related to a PSP ISO download that’s been “fixed” (e.g., patched, working on certain firmware, or renamed for compatibility). The most common "GTA IV PSP" files are
: Genuine GTA 4 files are roughly 20–22 GB , while these PSP mods are "highly compressed" (often around 300MB to 1GB ) to fit the technical constraints of the PSP emulator. Common Fixes Provided in Downloads : Official Mobile Releases : Rockstar Games has official
If you have found a reputable modded ISO designed for PSP/PPSSPP, here is the standard setup to fix common loading issues: : Connect your device to a computer and move the file to the