Go to Settings > System Update, then Update via Storage Media. Then update.So wait, i just need to update via the System Update button? What does Toggle QA do then? (its under games in Xmb)
I put the file in x/PS3/UPDATE and renamed the file to PS3UPDAT.PUP
Toggling QA flag on allows you to downgrade/upgrade cfw without any issues or having to format your hdd.