For today’s video, I’ll be covering everything you need to know on how to successfully mod your PlayStation 3 Console. Refer to PSHomebrew's PSP on PS3 compatibility list for per-game info.Hello the PlayStation 3 Homebrew/Modding Community, welcome back to my channel. PSP games also work on PS3 through an emulator created for playing "PS3 Minis" from PSN, but compatibility is very limited (less than that of PPSSPP). Refer to Wikipedia's PS3 backward compatibility list for per-game info. ps2_emu is only usable on COBRA firmwares, meaning custom firmwares that integrate the functionality that was previously only available for those who bought the DRM'd Cobra dongle. Unlike ps2_netemu, this one utilizes the extra PS2 hardware integrated in your console and has much better compatibility. Note that if you own an old backwards-compatible PS3 unit, and it for whatever reason hasn't broken yet, you'll rather want to be using ps2_emu - the emulator that's launched when you put a PS2 game disc into the console. Refer to the PSHomebrew's PS2 Classics compatibility list for per-game info. It was never meant to be used as a general-purpose emulator, which means you really shouldn't be expecting perfect compatibility with games it hasn't been specifically optimized for, but many titles are playable. You can emulate PS2 games on any model of the PS3 using ps2_netemu (Sony's own software-based PS2 emulator, also known as the "PS2 Classics Emulator"), which was developed for playing the PS2 games sold on PSN. Official Sony Emulators Main article: Official Sony Emulators#Emulators on PlayStation 3 PS2
RetroArch has a PS3 port with lots of working cores that should cover most of the usual targets. Only once you're on the custom firmware can you downgrade.
Once the flash memory has been patched, you can install a custom firmware that matches the same version as the console's original firmware. This page explains how to use it, including instructions on how to back up the flash memory in case something goes wrong.
The primary attack vector for custom firmware is a component used for signature verification that could be found in models up until January 2011 (meaning if your PlayStation 3 had a factory version at or lower than 3.55, it could be modded out of the box with a simple upgrade to 3.55).