To clarify for all players: Capcom an official version of Resident Evil 4 for the PlayStation Portable (PSP). Because the PPSSPP emulator is designed specifically to run PSP hardware files, there is no "official" ISO file for this game.
Alternative: You can place the ISO anywhere (e.g., Downloads folder), but keeping it in PSP/GAME keeps PPSSPP organized. Resident Evil 4 Ppsspp Android Iso File Download
If you want to play Resident Evil 4 on your Android device, you should look into these verified methods instead of PSP emulation: never released To clarify for all players: Capcom
Have you successfully set up RE4 on PPSSPP? Share your FPS results and controller mapping tricks in the comments below! Resident Evil 4 Ppsspp Android Iso File Download