(adsbygoogle = window.adsbygoogle || []).push({}); can anyone tell me how to jailbreak a psp on 4.05?

thank you

What kind of PSP do you have? 1000 (FAT), 2000 (SLIM), 3000 (BRITE), or GO?

EDIT: When you figure out, this is why I asked you:

PSP 1000 - Really easy to jailbreak
PSP 2000 - This is the toughest to jailbreak, old ones are completely hackable and the newer ones are partially hackable (means no permanent CFW)
PSP 3000 - Partially hackable
PSP GO - Partially hackable

yr it really depends on what model it is like the last guys says i ave 1000 so it was well easy to hack

Forget 4.05, if you have a PSP 1000 use 5.00 M33-6 or Gen. Or you can have the easy option of just updating to 6.20 and installing HEN CFW on any moder PSP.

EDIT: For 6.20 firmwares it's TN (Total_Noob) or 6.20 PRO (B-6 is the newest although B-7 is out it's not a official CFW, it's a 'Nightly Build'