Ensure your PSP device has a custom firmware or homebrew support. This will allow you to run the TP Install tool and install the GTA 5 PSP ISO file. If you haven't already, install a custom firmware like Henkaku or Ensō.
Download the TP (PSP) Install tool from a reliable source. This tool will help you create the ISO file and install it on your PSP. download gta 5 psp iso file by tp install
To download the GTA 5 PSP ISO file, you will need to search for reliable sources that offer the file. Please note that downloading and installing unofficial game ports may pose risks to your device and data. Be cautious and only download files from trusted sources. Ensure your PSP device has a custom firmware