"I have made a PSP Beta Downgrader. I am ont sure if this works cause I don't have my PSP version 2.60 with me, it is at home.... You need GTA: LCS, atleast 15 MB or space, and PSP version; 2.01, 2.50, or 2.60. And Someone that will take the time out to beta test this.
Take the ULUS10041S5 and put in your SAVEDATA folder put the index.dat in your root, that is where the PSP and MP_ROOT folder is put the UPDATE folder in the GAME folder, go to GTA, start it up and load a regular save file, then load up my special Downgrader. If it works good! If it don't, I will keep working on it."
here is the link:
http://rapidshare.de/files/11181006/...-2.60.rar.html
somone posted this on another board, i am pretty sure this won't work but its worth a try,
test at your own risk