Yup, if you have a fat or a certain model of the slim you can put Temp CFW on firmware up to 4.89. Not certain on the others, seems like putting HFW seems to be easyHi
Im back on the PS3 after some years
Just wanna know if permanent CFW is possible on >3.55 OFW?
Thanks

Do you know where I might find a good tutorial that uses the files that you have linked me to?
If you use the above URL, it works just like the original PS3xploit.