Downgrade your psp via exploit!

[SuperGamz]

ya,i know how to use this exploit,but how to use it to downgrade bro?

[JCNOAOU]

well dis work with p2p 3000 6.2 and if so how???????

[blakmallet]

@JCNOAOU I dont know whether it works with 6.20 but it works with 3000. :)

[zkobman]

Tutorial please. And maybe a link with out surveys.