PSP/Downgrade to OFW 6.20


 * 1) Download OFW 6.20 (use this file if you have a PSP Go)
 * 2) Using your PC, create a folder named "PSP" on your PSP. Within the "PSP" folder, create a folder named "GAME". Within the "GAME" folder, create a folder named "UPDATE". (Folder names must be in all uppercase letters). The result will be ms0:\PSP\GAME\UPDATE.
 * 3) Copy the EBOOT.PBP you downloaded to your UPDATE folder.
 * 4) Download the 6.xx Downgrader, and extract it.
 * 5) Copy the resulting "Downgrader" folder into the PSP/GAME folder.
 * 6) From the XMB (home menu), under Game -> Memory Stick (or System Storage on PSP Go) select the Downgrader program.
 * 7) In the downgrader app, press X to start the downgrade or R to exit.
 * 8) After the Sony updater is finished you will get a message saying that "Settings Information is Corrupted". Just press the O button.
 * 9) You have now downgraded to OFW 6.20.