hey all so I am in need of help trying to upgrade my cfw on my slim PS3. It is currently on Rogero 4.55 cfw and I wish to use the latest rebug cfw. I haven't been active in the PS3 cfw scene it quite a while as you can probably tell so I don't know where to start. I was under the impression I could just update it from a sub and be done but I constantly receive an error message, so I thought I had to downgrade but also receive an error message. Can anybody give me guidance on what I need to do in order to update and what is needed, not sure if I need to go through the whole flashing process again, any help is appreciated.