Just bought a New 3ds XL. It's on 11.4U. I have O3ds XL which is on B9S 11.4E & I don't have any required DS game to do this https://3ds.guide/installing-boot9strap-(dsiware). I can change the region of my O3ds XL to US. So my basic questions are: 1. Will O3DS XL work to that tutorial? 2. Can I restore my O3DS XL to it's original European Firmware? 3. Can I get legit .cia DS game from rom sites online?