Hi guys, noob here very glad I found this forum.

I have a Phat PSP that I put CFW 3.40 OE-A many years ago, and I haven't used my PSP for over 8 years. I found it the other day bought a new battery and fired it up, it works perfectly as it did many years ago. I want to introduce my 9 year old to the old skool video games.

My question is since I haven't kept up to date with the news, how can I upgrade to the newest permanent CFW from my current CFW?

Is there a guide somewhere? I have looked but I only found some that are upgrading from newer official firmwares.

Thanks in advance,