when i format my memory stick. i didn't make a backup file for the system file....... now they all gone...
when i try to make some upgrade, by create a folder (ms0:\PSP\GAMES\update\EBOOT.PBP) it not appear in my XMB game menu....
so, where should i get back all my system file, because i want 2 try make some upgrade, and see if i upgrade my psp will solve my problem....
i want to try to update my cfw 3.52 m33 to 3.52 m33-4......
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