need help

[Tcoppz845]

Im trying to run Halo Zero on my PSP.
I have OFW 4.05 and need help downgrading.
Can you help me?

[JKKDARK]

You need a Pandora battery

[aaaaaaa79000]

Visit this website it helps and it has PSP magic memory stick pre made file so they already are made just copy and paste soooooooooooooooo easy.NOOB Friendly
http://www.freewebs.com/pspm33hack/index.htm