– Allfon.net is ad-supported. Expect pop-ups, redirects, and “Download” buttons that are actually ads. Always use an adblocker and double-check file extensions ( .iso , .zip , .7z – never .exe for PSP files).
Allfon.net PSP: A Comprehensive Review of the Online Phone Service allfon.net psp
If the specific "allfon" site you mentioned is a different, niche site, the process remains exactly the same: acquire the ISO/CSO file and load it into an emulator. – Allfon