First if you have spare MS ,make the ultimate pandora [hint = http://forums.maxconsole.net/showthread.php?t=85842 Hint over]

search for files pack , and once you do the MS stick for all PSP users is must have NAnd Backup , of any working state of your PSP , in your case 3.52 M33-4.

1. Ms stick pandora
2. make service mode battery ( keep AC adapter close)
3. boot with it , and make nand backup - remember for PSP = you need 34 Mb free on MS
                                                                     for Slim = you need 66 Mb free
4. PLACE THE BACKUP IN SAFE PLACE
5. Connect AC without the battery and power on , then put the baterry and convert it back to normal
6. after that don't worry and go for 3.71 M33-3

(This post was last modified: 30/11/2007 01:49 PM by gsmoke.)