Well first, back up your nand right now. It's always good to have a backup. Really as long as you don't play online while in cfw you should be fine. Just make sure your being careful while in cfw, and never play pirated games onlineI wanna go onlline but i didnt backup my clean nand what can i do?
well its untested but you could stay offline the entire time using cfw then reload a backup for onlineHaving a NAND back up will NOT help you if you get banned. If you get banned then you get banned, no way around it, a clean NAND wont help you. Of course it's always good to have a clean NAND backup just in case something goes wrong
well its untested but you could stay offline the entire time using cfw then reload a backup for online