u/Fibology

Goodmorning, I couldn’t find a definitive answer so here it goes, my ps3 is on 4.84 rebug dev.
I want to go to 4.93 evilnat cex, what’s the procedure to do this, do I first have to convert the dev to cex? I have seen many answers but they confuse me the longer I search, also which evilnat version would I need?

Thnx in advance.