[Guide] Hack: How to EASILY install custom firmware 6.35 PRO-B on your PSP

Requirements 
Your PSP must be at official firmware 6.35 to install 6.35 PRO-B. Download the following:
- 6.35 PRO-B
- 6.35 PRO-B mirror

Instructions 
Follow the video below:




The ISO loader is built in. You DO NOT need to install prometheus isoloader or any other ISO loader.

Congrats, your PSP is now able to run PSP isos, PSX Games (Eboots) and other homebrew programs, like emulators. Enjoy.