PS3 4.23 Reverter

PS3 4.23 Reverter

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1)on usb stick make folder called PS3
2) Make A Folder inside That called UPDATE
3)plug in ps3 for recovery mode steps
recovery Mode Tutorial:
1) Turn Your PS3 Off, Then Hold Your Finger On The Power Button Until It Turns Off.
2) Now hold Your Finger On It Again Until It Beeps Twice Fast, Then Your In Safe Mode.
3) Plug Your Controller In And Click The PS Button, Then Scroll To System Update, And Update, Then You'll Be On Official Firmware