je voudrez enlever le patch 1.50 pour remettre ma psp version jap en anglais et japonai ! !
mais je ne sais pas commen pas l enlever alors dite moi comme faire ! !
merci

on peut pas je pense

tu peux pas.

c´est tout.
Pas pour le moment.

Et je peut savoir en quoi ca va te servir

il veut faire tourner des emulateurs, c´est le seul moyen. ^^

Salut,

Apparement c´est possible:

PSP Firmware Downgrade? ( 21 Hits / 0 Comments )
Posted on 22nd of May 2005 02:48:16 PM / / Category: PSP / / posted by : xAix

It might just be possible for you people who are stuck with the PSP firmware 1.5x to downgrade your firmware to 1.0 making it able to run 3rd party software on it.

Over at ps2dev.org they discovered a device called “lflash:” using a brute force style attack against all PSP I/O devices. This device allows block access to all 32MB of the PSP’s flash memory and it also opens up the device with read/write access!

I dont know what that means but lets cross our fingers and hope that this would be a success for downgrading the PSP Firmware. Check back for updates on this story.

Source: http://www.mxemu.com/

A+