Make sure your PSP's battery is charged, and plug it into the wall via its AC adapter.Once the update is complete, you can delete the update file from your memory stick to save space.Alternatively, you can navigate to the Game menu and select the memory card and then the update. This time, select Update via Storage Media to begin the update. If you decide to update later, you can find the download under the System menu, in System Update.The PSP will restart when the update is finished, so make sure the install and restart are complete before pressing any buttons. Select yes and wait for the update to install. When the update has downloaded, you will be asked if you want to update right away.If you want to check the status of the download and your power-saving feature has shut off the PSP screen, press the display button to brighten the screen again (it's the button at the bottom with a little rounded rectangle on it). Do not turn the PSP off or otherwise fiddle with the buttons while you wait for the update to download.When the PSP is connected, it will automatically check for an update, and if it finds a newer firmware version, it will ask if you want to update.You will then have to either select your internet connection (if you've already set one up) or select and follow the steps to access your wireless internet connection.When prompted, select Update via Internet.Turn the PSP on and navigate to the Settings menu and select System Update.Make sure there's at least 28 MB of free space on your memory stick (or on the onboard memory if you have a PSPgo).

Plug the AC adapter into the PSP and a wall socket.

Make sure your PSP battery is charged.

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