Trying to update to OFW 6.60 for hacking was not possible as i kept getting update error (dadada) After a couple hours of looking, i had found out that the PSP is already hacked, but not with the "latest" upgrade or whatever.

If someone could walk me through a step by step recovery to get it back to ofw 1.5 but r trigga button on my psp does not woriking :s