Things You'll Need
Instructions
Turn on your computer and plug the USB stick in one of its USB ports. The USB stick appears as an external drive in the Windows Explorer.
Navigate to the drive, then back up and delete all of its current files. Right-click on the white space, select "New" and click "Folder." Name the folder "PS3."
Double-click the PS3 folder, right-click inside the white space, select "New" and click "Folder." Name the new folder "Update."
Open your Web browser and navigate to Xup.in's PS3UPDAT.rar download page to download the necessary files (see Resources). Click the "Download" button and save the "PS3UPDAT.rar" archive on your computer's hard disk drive.
Use WinRAR or a similar program to extract the archive to the "Update" folder on the USB drive. A "PS3UPDAT.PUPjail" file is created. Remove the "jail" part from the name.
Unplug the USB stick from your computer, turn on the PS3 Slim and plug the USB stick into the gaming console.
Go to the "Settings" tab on the PS3 and select "System Update." Select to "Update via Storage Media."
Click "OK" when you are informed that the console found Version 3.55-jb.
Accept the conditions and click "Install Update" to install the jailbreak. It should take less than a minute. The PS3 then beeps four times and shuts down.
Power up the PS3 Slim from the console itself. You can now install any third-party application or game.