I'm srry mate but never heard of anyone get it working on the 300x series.
Sure you havent a 200x?
No even pandora battery doesnt work
alright well thx for the help every1..
Im jus gonna wait for the PSVita to come out here in the US
Since were already making homebrew for it
as for the 2 bricked psps.. ill probably keep them till I hear of a way to fix them
And don't try to install an cfw on it!
You now no it will end up with a brick
My condolences my friend, that's why I'll stick it to my 2000, in case of a Brick there will be always hope