well to break it into simple terms i guess u can say that it has
two versions.downgradeable,undowngradeable(ta-082).Downgradeable
allows u to lower down the firmware by forcing it with a
software.this also alows u to play homebrew,iso/cso games( will
save u a bomb).
Furthermore if your psp is an undowngradeable set,u dun need to
sulk,but make sure its a psp with firmware v2.71 and below.And to
check if your psp has the ta-082 without voiding the warranty ,U
need to open the umd drive of ur psp,and look into it at the top
right corner and if its written ic3003 then it is the
undowngradeable one.But now,i think all the brand new sets are
ta-082 protected and thier firmware are pushed to the
highest.Disabling you from downgrading.Sony does this so that they
can maintain the traffic on the games they have created.Also, they
didn't noe that the version v1.5 can emulate to play games.On the
contrary sometimes u need a umd disc(any will do) to bootup a
game.And is also only for the tech savvy,its quite comlicated in a
sense,such as the directories and databases.One more last thing to
note:SONY DOES NOT COVER DEAD SCREEN PIXELS.AND THEY CLAIM TO BE
NORMAL.HOWEVER IF U HAVE 3 OR MORE PIXELS THEN ONLY WILL THEY
SERVICE THE PRODUCT(if its still under warranty) for free.
