Things You'll Need
Instructions
Insert your USB storage device into your computer. Click "Start" and select the "Computer" option to launch a new window. Right-click the USB storage device and select the "Format" option.
Download the Jailbreak PS3 3.73 file launcher onto your computer and double-click the launcher to extract the Jailbreak PS 3.73 files to your computer.
Move the Jailbreak PS3 3.73 files from your computer to the USB drive.
Remove any discs from your PlayStation 3 and disconnect any USB devices connected to the console.
Unplug the PS3 from the power supply and insert your USB drive into the USB port nearest the Blu-ray disc player.
Plug the PS3 console into the power supply and press the "Power" button, then press the "Eject" button.
Press "OK" when asked to perform a system update to complete the jailreaking process.