Steena,
Thanks for wanting to help me, but I followed the tip Gerbilly and it worked! I am awaiting the arrival of my Nintendo 3ds xl + gateway. I hope to get this week ... :)
The version of the Gateway would be safer 2.0b1. Only I can not find it for download on the official website of the gateway, only the version 2.0b2 version where it's supposed to be inserted malicious code that everyone fears. Now I will start hunting this file to download ....
The problem is that this reseller, he sells the Nintendo 3DS XL Fw 4.5 + Gateway installed, ready for use. I'll contact him and verify which version of the gateway that will come installed!!
I got a legitimate gateway in one of the official representatives listed on the official site, I have not received it is being sent. I'm afraid to upgrade to the latest version (2.0b2) :/