alright this is my second time installing 3.40 firmware on my psp, and this is the second time it almost bricked my psp . I know why it semi-brick the first time (because right after I up dated it I started throughing menu mods at it and it didn't like that so it died) after that I still new I have to upgrade the firmware but I didn't attempt it until recently. This time I was a little more careful with the theme and every thing wasn't going smoothly because for some reason every time I put a wallpaper on my psp and turned it off it would not turn on and everything in the recovery menu would reset to the default settings. I went into an emulator program and when I exited out of the program it crashed so a I pulled out the battery. Now the other problem wasn't so bad but this time when I went into recovery mode to activate sc logo that section of the menu was gone. This is a BIG PROBLEM!!!