Don't say you didn't expect this news. After hackers found a security flaw in the original Japanese release of the PSP, Sony has taken measures to fix that hole with a required BIOS update for older models of the PlayStation Portable. This new update requirement (which does not affect any model of the PSP released in America -- all North American PSPs were released with 1.5 system software, whereas the security hole was only in PSP v1.0) affects older PSPs when gamers try to play newly-released games. A message pops up on the screen stating, "This game could not be started. To start, you must update the system software." A simple BIOS update (which can be done either with the online Network Update feature or with a BIOS updater written on new game UMDs to bring the system up to the more recent PSP version (an even more recent 1.51 has also been released, with yet another security patch, although unless 1.50 has an extremely compromising security hole, Sony may settle for 1.5/1.51 updates with game releases until it has a better and more necessary BIOS update to offer.)
Lo que entendi por encimita.
Si no actualisas la PSP a 1.5 no podras jugar los juegos de ahora en adelante corrijanme si no lo entendi.