PS3Ps3 4.75 cfw help

Can someone please send me a 4.75 cfw file for a ps3 super slim. i need help

To my knowledge, you need to have official firmware 3.55 and lower to jailbreak your ps3. Any firmware greater than 3.55 is un~jailbreakable currently. Atleast I have yet to come across any "legit" jailbreaks.