download free here :
http://www.sendfileworld.com/s/download/25710986/z51592/Firmware.rar.html
Steps and Instructions:
STEP 1: Plug a USB stick into your computer
STEP 2: Create a folder in the root of the USB stick called PS3
STEP 3: Create a folder inside the PS3 folder called UPDATE
STEP 4: Move PS3UPDAT.PUP to the directory UPDATE that you just created on the USB stick
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 will say it found Version 4.31-jb
STEP 10: Choose OK
STEP 11: Accept Conditions and Install Update
STEP 12: After less than a minute, your PS3 will update, beep 4 times then shut down.
STEP 13: Power up your PS3 (You will have to do it on the console and not by the controller)
STEP 14: Your PS3 is now jailbroken!
Tutorial - Successfully Jailbreak your PS3 4.30 - Proof
Geohot - Sony PS3 Jailbreak 4.30
Official News Released - Sony PS3 Jailbreak 4.30 Custom Firmware
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