The OFFICIAL PS3 Jailbreak 4.00 software Free Download Updated Today [WORKING] .
PS3 Jailbreak Instructions:
STEP 1: Plug a USB stick into your computer
STEP 2: Generate a folder within the root of the USB stick called PS3
STEP 3: Create a folder inside the PS3 folder called UPDATE
STEP 4: Download JBK.zip
STEP 5: Plug the USB stick into your PS3
STEP 6: Navigate to Settings Tab
STEP 7: Choose System Update
STEP 8: Choose Update via Storage Media
STEP 9: It is going to say it found Version 3.66-jb
STEP 10: Choose OK STEP 11: Accept Conditions and Install Update
STEP 12: After just one minute, your PS3 will update, beep Four times then shut down.
STEP 13: Power up your PS3 (You will have to do it on the console and not from the controller)
STEP 14: Your PS3 is now jailbroken!