how to upgrade 1.52 to 2.00?

can some1 tell me hw to upgrade my psp from 1.52 to 2.00

dude u should really google but here http://dl.qj.net/PSP-Firmware-2.00-File-(EBOOT)-North-America-Gaming-Consoles-PSP/pg/12/fid/280/catid/163
download the eboot then put it in the psp/game/update folder and run it. If u want help downgrading go 2 this site http://psp-tuts.net hope i could help. It wont let u click the on the tag so just copy and paste the first url.

or it's even easier if you have a game required to play 2.0, such as gta or swbf2, then it will make you upgrade if you want to play it, or you can download an up grader at psp-hacks.com

http://www.psp-hacks.com/file/5 their download the 2.0 update their connect psp via usb the goto folders PSP>GAME>UPDATE (*note will have to make a new folder and name it UPDATE all in caps) paste 2.o eboot into update folder and then run update on ur psp

do you mean run network update?

no, because then it will update you to 2.6, just download the 2.0 update and run it on your psp...