How to crack psp?

SOURCE: psp slim and light v.4.01(2006 hongkong brand)

If so, your PSP probably runs on an Official Firmware of Sony...to check if it is an official firmware, just go to your XMB>SYSTEM>SYSTEM INFORMATION, then check your System Software...if your System software has the M33-2 suffix, it is a Custom firmware and it should be able to run games on your Memcard...then if it DOESN'T HAVE a M33 Suffix, therefore, I'm sorry to say that iit is an OFFICIAL Sony Firmware and IT CANNOT run games on your memory card...the only way to fix that is you should have it modded/downgraded and then upgraded to a custom Firmware...

SOURCE: how to play games on psp on memory stick

PLS HELP ME TO PUT GAMES ON MY PSP 5.0 VERSION. I CAN'T PLAY GAMES ...PLS HELP ME TO SOLVE MY PROBLEM ON HOW TO PUT GAMES..

SOURCE: updated psp won't play games from memory stick

If you look around on the internet, there are a number of sites that offer ways of downgrading your psp.

SOURCE: i can't play downloaded psp games at my psp ver 5.03

I had same problem with my PSP and after searching for weeks I wasunable to fix my PSP then I found this site and purchased this I wouldsay bible of PSP and bingo!!!!!!! got my PSP fixed! I can even open aPSP repair shop with the help of this guide. A must have for anyonewith PSP!
you can get your copy here
http://psprepairguide.com

SOURCE: can i play downloaded games w/ a 6.20 system & psp 2003.

if your cfw is 6.20 m33,gen,or mhu then yesbut if you have ofw check your motherboard and if its hackable then put pandora battery creator or its called something like that then use the pandora battery to downgrade it to 5.00,5.03,5.50,or if you donmt want cfw put it to firmware 1.50 hope it worked :) :P