I readed some guides regarding 'region change', but I want to know if it's possible to fake out 2 devices with same serial, secureinfo_a, NNID, etc,. a perfect clone, like swapping SD cards both of them works with same apps, games, NNID. Some tech info I was reading: http://3dbrew.org/wiki/Nandrw/sys/SecureInfo_A http://yifan.lu/2015/04/22/opening-up-cardboard-crafting-an-american-new-3ds-non-xl/ The steps would be something like that: 1- Get a 3DS fully functional vanilla updated sysnand, with NNID, original titles, call it device #1; 2- Get another 3DS fully functional (vanilla sysnand no NNID linked; rxtools emunand unliked), call it device #2 (both are different hardware devices); 3- Do a System Transfer from #1 to #2; 4- Backup emunand #2; 5- Wait 7 days; 6- Config device #1 to first use after System Transfer reset; 7- Do another System Transfer from #2 to #1; 8- Modify emunand #2 backup to have same secureinfo_A serial as #1; 9- Modify unknown files needed to make appears the same as #1; (<---- I need more info on this) 10- Restore 'cloned' emunand at #2; 11- Use emunand #2 as a clone of device #1 (not at same time of course). First: Does this works? Since it's possible to do change region, why not just do a clone same region? Second: For those that want to know why did I not tried myself, it's because I'm stuck at step 5 right now. Third: Why I would like to to that? Well, I have a O3DS XL, only able to do Homebrew through OOThax (10.3 firmware). I bought another O3DS XL at firmware 6.1, did the rxtool stuff. Now I want to use multiple SD cards at the exploitable device, to use my own account and on both devices, do regular backups of my titles, and do CFW tests. Besides my lack of knowledge on what else I need to do at step 9, has anyone tried to do a cloned device? And what else would I need to do in step 9?