No, I've never actually installed CFW on my PS3 Slim, I saw the new Evilnat 4.88 CFW and thought of getting it cause PS3Hen isn't a great PS2 Emulator, turns out my PS3 was the final PS3 Slim which could be Jailbroken with CFW (CECH-25XXB) - (Date Code- 0D) manufactured in 2010 and I used Minvercheck and found out the MFW to be 3.50 and that was a safe FW.. I never knew my PS3 supported CFW and had used Hen/Han the entire time.. I just completed the Memory Exploit and tried but this time it said ("The data is corrupted" at around 72%.").. so yeah..