So I have my original black 32gb wii u on 5.3.2 and blocked the list of urls on my router so that it couldn't update. Sadly I never dl'd the new updates/dlc to kart or smash before the 5.4.0 update came out, and now I can't get on shop without it. I really don't want to loose the potential to hack this system in the future so I have a kind of shady idea I wanted to bounce an idea off you guys to see what you thought. I was thinking of buying a new wii u at costco, which by the way has a 90-day no questions asked return policy for electronics (pretty much no time limit for non-electronics btw). Can I do a system transfer (including nnid) from my 5.3.2 to my new system, update the new one. I would hope that within the 3 month(90 day period), before I have to return it, a kernel exploit is out. But my question is after upgrading the newer system to 5.4.0 or newer will I be able to transfer back to my 5.3.2? Does any one have any helpful advice?