can I have an idiots guide to 2.8 plz

I bought my PSP on the day it came out in America, so I assume the motherboard is fine. Now, to business

Can someone please give me an idiots tutorial with every step I need to do for getting my v2.80 PSP up and running homebrew. Ideally, I'd like to run an SNES emulator and N64 as well. Thanks


I'm PARANOID Of bricking it, so detailed instructions plz

I was under the impression that if you have 2.80 like I do I could just use a downgrader, and that I only had to use GTA for 2.81+?