Things You'll Need
Instructions
Download and save the PSP portal on your computer. See Resources if you don't have one already.
Turn on your PSP, and connect it to your computer using the USB cable.
Scroll to "Settings" on the PSP, and select "USB Connection" by pressing the "X" button.
Navigate to the PSP's removable drive on your computer, and open it.
Double-click on the root folder "PSP" to access its content.
Drag and drop the PSP portal file into the "PSP" folder.
Safely eject the device from your computer once the transfer of the PSP portal file to your PSP 1000 is complete.
Start the web browser on your PSP.
Press the "Triangle" button, and select "Tools."
Delete the cookies and cache memory from your browser, and reboot the PSP.