been searching on here for a week but the info on here is overwhelming. I have a 4.0U with homebrew installed. Im considering downgrading but do i need to downgrade to play backup games? Also what do i need to get started playing backup games?
Go here. This page has all the information you need including Downgrading, Running Backups, USB Loaders, etc. I know it takes some reading but follow these tutorials and you'll be playing backup games in no time.