PSP custom firmware please help?

I am trying to get custom firmware on my psp and cant find the right files for magic memory stick.please help?

• btw i have downloaded something that allowed me to go into service mode but it wouldnt let me do anything but dump my nand or whatever its called

• Answer:

  use this: http://www.x-projects.org/index.php?PHPSESSID=0723d45bb920085a75ddd8cd0e70bb05&topic=149.0 it works great, and installs the latest m33 firmware here are the steps to take, first I format my memory stick from the psp setup menu, then I open PSP grader, then I load the 4.01 eboot, then I leave the trigger button as none, then (with the psp connected to the pc in usb mode) I check the box for Format Memorystick, and select the drive letter assigned to the psp in the: PSP Memorystick dropdown box, then I click create pandora stick, wait till the process is complete, then I exit usb mode on my psp, then remove then reinsert the memory stick, then i power the psp down fully, then with the psp powered down and not connected to the power cord I put in the pandora battery (you dont have to hold the L button or anything) then the PSP boots to the pandora menu and I select 4.01m33-2 and in 3 minutes it asks to shut down or reboot and i select reboot and voila I am hacked. follow these steps and if its hackable this will work. if you don't have the OFW 4.01 updat you can download it from here: http://www.psp-hacks.com/file/1506 if still left with questions you can hit me up on that forum my username is Buzz_Kill