Hi guys I have a PSP-2003 date code 7D. I'm not sure what firmware is on it but I believe it has Prometheus 5.50 loader on it. Under system information it has 5.50 Prome-4. I'd like to know what is the best current loader for isos, PSX and homebrew as some games I have tried won't boot on my setup. Any help much appreciated as I would like to try Fate Extra as well as some other titles. Cheers.