A few people on GBA has claimed that by using Luigi's Mansion 2 and GW firmware 1.0, it will allow the user to update the 3DS to 4.5 and circumvent having to buy a retail game. Now if this is true, where can I go to find that GW 1.0 firmware? It's no longer on GW's website. Looks like I will need someone to upload it for me. Update 12/12/2013: I just realized that it is impossible to go from lets say 2.2 to 4.X via game ROM because the Gateway launcher wont even open. Is that correct?