Things You'll Need
Instructions
Download and install the Devhook application on your computer (see Resources).
Insert the PSP USB cable into an available USB port on your computer. A folder for the PSP will automatically appear on your desktop. Double-click the folder to open it.
Drag-and-drop the Devhook application file you downloaded into the "ROOT" folder inside the PSP folder.
Double-click the Devhook file while it is inside the PSP "ROOT" folder to extract the compressed files. Disconnect the PSP from your computer.