Umm Freeplay I am pretty sure you know about this already but http://forums.ps2dev.org/viewtopic.p...pdate+security ...Yes the param.sfo CAN be edited without but the .psar cannot be edited, and that holds the important checks...And incase you didn't know, me and Mathieulh are good friends(how do you think PSP3D had the old NAND Flasher back in the early days of the site) lol, but I don't want to get into it again, lol!