I've found a second exploit in Sony's version 2.50 PSP firmware. Other than using savedata, I've gone to using a music file, a video, and a web page. The web page, which contains a masked link, launches the music file. The music file, called system_plugin.at3, has some hidden hex values that will launch a file the PSP itself has. That is logged and when the launch is finished, the video, called update_plugin.mp4, will launch the 1.50 EBOOT. If this sounds complicated, then wait for a less complicated way to do this.
:dj: :icon_bigg :Jump: