PlayStation Portable (PSP):
This is one of the easiest consoles EVER to hack.
You will need a PSP Memory Stick.
First:
Make sure your PSP is on firmware 6.60 or 6.61.
Then, Download a custom firmware like ARK-4, Copy the files to your PSP via USB, Run the installer from the Game to the Memory Stick menu and Launch the CFW loader
That’s it.
After that, You can run ISO/CSO games, Emulators, Plugins
NOTE:
Most installs are temporary, meaning that you will have to re-run the launcher after a full shutdown
PlayStation Vita:
This one is EVEN BETTER once hacked.
You need an internet connection for this.
Go to this site on your Vita browser: https://guide.psp2.dev/start/hen
Then, Press “Unlock my Vita”. Install both HENkaku and VitaDeploy
If it crashes, Just retry.
Go to Settings, Open HENkaku settings and enable “Unsafe Homebrew (its not, really.)”
Open VitaDeploy, choose “Install a different OS” and select "Quick 3.65 install".
Wait and follow on-screen instructions.
When it finishes, your Vita reboots into CFW
THE NEXT STEP IS IMPORTANT.
Without this, you redo the hack every reboot.
Install "Enso", Download and install it, run the app and press install
Now, CFW WILL load automatically every time you restart,
Download "VitaShell" (A CFW file manager) and "Homebrew Browser"
These let you install anything else you want.
Firmware matters A LOT:
3.60 has the BEST compatibility, 3.65 is also great but on higher versions people usually downgrade for better support.
And, you're done!