2.5 update eboot

OK i have the 2.5 update eboot but where do i put it in my psp? I want to update from 2.1 to 2.5. I cant remember how i did it on my first psp! please help!! thanks

in the game folder

you put it inside the game folder in a folder named UPDATE

thanks both of u guys for ur help!! i appreciate it!!

i think its weird that some1 doesnt know how to updates his psp