1. Sorry, this was in Part 4.
2. I was having only one issue prior to this -> When I'm trying to install kmeaw 3.55 CFW mentioned in part1 -> And PS3 said something like "existing firmware is already up-to-date. No need to install you idiot ". So I tought my current Rogero 3.55CFW is okay for this tutorial.
3. Don't know it's required or not -> My ps3 was hard-downgraded before.
Have one advice to dumb guys like me -> Please don't mess with you PS3 unless you have 100 bucks in your pocket.