What is the latest custom firmware I should install for my PSP?

[Lukeson]

Hi,

I bought a PSP right when it came out and the first thing I did was installing a custom firmware. Now it's been a couple of years that I haven't used it, but now I really wanna get back to it.

But I have no clue what's the coolest and newest custom firmware to install right now. I currently have v.5.00 M33-3 on it, probably no one knows what that was.

Can you give me a hint what custom firmware I should install?

Thanks
Lukas

[Lukeson]

Ok, I figured it out. It depends on the type of PSP you have. For my PSP 1004 I had to install the official firmware 6.60 and then install this custom firmware: http://zload.net/v2/archives/file/?id=2417471

I found a very good but german guide here: http://www.kingx.de/forum/showthread.php?tid=47363 , this forum post says there is an english version (in the same post hidden as a spoiler) available too.

[fortion]

Can you suggest me firmware for my PSP 1001.

[Shrygue]

Install the 6.60 PRO or ME firmware, they're ace I tell you.