★★★★★ (for what it is)
The required file is the (a .PUP file) downloaded directly from Sony’s website. Once you point RPCS3 to it, the emulator installs it like a real PS3 would.
Always get the firmware from Sony’s official servers – never from third-party sites.
If you’re setting up RPCS3 (the PS3 emulator), you’ll see prompts asking for “firmware.” To be clear: RPCS3 doesn’t contain firmware – you must supply it from an official source.
Here’s a concise, informative review of , written as if from a user’s perspective: Title: Essential, but not “firmware” itself – a quick clarification