Things You'll Need
Instructions
Set up internet connection on your PSP
Switch on your PSP then select "Network Systems" from the system menu.
Select the "Infrastructure Mode" and then select your home connection.
Select "Manual" under the DNS settings menu. This will bring up a window where you must input the Web gateway. For the primary DNS IP, input the numbers 208.42.28.174. For the secondary DNS IP, input 0.0.0.0.
Disable the proxy server by selecting "Do Not Use" from the "Proxy Server" menu.
Download XMB to your PSP
Launch your PSP's Web browser. Navigate to a free download site.
Select the version you'd like to download. The most popular download will be the most recent version, complete with updates. Click on this and wait for it to download.
Unzip the downloaded XMB file by double-clicking on it after it has download. Once the file has been unzipped, the PSP will guide you through setting it up.
Restart your PSP.