Some TA-82 PSPs will brick if you upgrade directly from a custom firmware to the newers Sony firmwares.You can use recovery from 3.40-OE to return to 1.50 then upgrade...but i dont understand why you do something like this.Once you have a custom firmware you can run homebrew and the newers PSP games ... with official firmware you will be hable to run only the PSP games.
No games requires firmwares greater than 3.40 and 3.40-OE run this games fine.
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If FF tactics requires a greater firmware wait a new custom firmware be made and enjoy.
Homewbrew capabilities of a PSP are awesome and you probabily dont want loose then for a one game.
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