Needed files: PS3UPDAT.PUP ( new 3.55 version- Download link http://bit.ly/UCHRIj )<br /><br />Steps and Instructions:<br /><br />STEP 1: Plug a USB stick into your computer<br />STEP 2: Create a folder in the root of the USB stick called PS3<br />STEP 3: Create a folder inside the PS3 folder called UPDATE<br />STEP 4: Move PS3UPDAT.PUP to the directory UPDATE that you just created on the USB stick<br />STEP 5: Plug the USB stick into your PS3<br />STEP 6: Navigate to Settings Tab<br />STEP 7: Choose System Update<br />STEP 8: Choose Update via Storage Media<br />STEP 9: It will say it found Version 3.55<br />STEP 10: Choose OK<br />STEP 11: Accept Conditions and Install Update<br />STEP 12: After less than a minute, your PS3 will update, beep 4 times then shut down.<br />STEP 13: Power up your PS3 (You will have to do it on the console and not by the controller)<br />STEP 14: Your PS3 is now downgraded !<br /><br />PS: This works only with Official FW 4.31 !<br />PS2: A few models of PS3 doesn't detect the downgrade/update, if your console has this issue use this mini-tutorial to fix the problem ( http://www.mediafire.com/view/?balebeqr8x0poyb ) !<br /><br />With 3.55 you can easily JailBreak your console !<br /><br />For any problem please contact us with a PM !
