[Hacking Q] Why can't downgrading work the same as upgrading?
this is a question mainly directed at the likes of dark alex and 0okm....
why can't downgrading be accomplished through the psp's firmware upgrade tool by swapping in whatever build you'd like to downgrade to, rather than the build the sony server provides? i'm sure any annoying checksum checks could be hacked as well.
perhaps someone could even setup a server to emulate sony's upgrade server and whenever a psp user uses the firmware upgrade, they'd redirect their psp to this new server instead (redirection can be easily done via your pc acting as a router).
if the psp upgrader requires the version number of the new build to be higher than the older version, i'm sure that could be emulated as well.