So, I'm eager to test this, but information on the matter is really hard to understand - so I turn towards GBAtemp, which is the community that felt the most noob friendly to me over the years. The questions are: What is all that DEX, QA and whatever talk? I don't remember seeing this back then. What do they mean and how do they affect CFW? Is there a difference between Rogero's and Rebug CFW 4.xx besides number? Were the bricking issues when updating to one of these 4.xx cfw fixed? [specially on slim consoles] I've been using Rebug 3.55.2 for some time, so I'm wondering if it would be best to use Rebug 4.21 instead of Rogero 4.30. My console iwasn't downgraded, but everyone says that QA and dehashing should be used/done before attempting this upgrade. I know this is related to the PS3 recovery menu too, but I have no idea how, nor I remember ever accessing the recovery menu. Anyone have a noob-friendly guide on how to safely upgrade to 4.xx CFW?