I need some help here because I have been trying this for seriously 10 hours over a few days span. I have read many guides on the internet and NONE of them to seem complete. I have a fat PSP with 3.52 M33 firmware. I also have a PSP Slim with 3.72 firmware. I want to get the PSP Slim to any custom firmware. Here is what I am doing. On my PSP fat, I completely erased my memory stick by right clicking on the PSP and then hitting the format button. I checked and everything is completely erased. Next, I downloaded and ran the Pandora's Jigstick + Magic Memory Card Installer2 program and chose the drive of my PSP. After installation, I go to the GAME folder andclick on the Pandora's Battery Creator. I back up "Backup battery eeprom to ms0:/eeprom.bin" Then I go back into that same folder and this time Hit X and I now have a Pandora Battery. Now I take the memory card out when all is finished and I put it in the PSP Slim. I put the battery in and the memory card. Black screen and I hit X. Nothing happens. I convert the batter back again. Then I download 3.60 M33 and put the 340.PBP and 350.PBP files in the pandora_slim folder of the GAME folder. I run the Pandora Battery Creator again. I put the memory card and Pandora in the PSP Slim again and nothing happens. ANy ideas as to what I am missing now?