Guys, that's my situation: I have a New 3ds LL and gateway working normally on it (emunand 9.4). But I can't download Monter Hunter 4 DLC because of EULA agreement and stuff. Here: Of course, I went to internet settings and checked this part, but there is no button to agree with it. Searching here it I've found someone who bypass this by installing Config.cia and there is one part which you set ff:ff and that's it. https://gbatemp.net/threads/problems-with-some-roms-online-003-0399-error-help.378946/ But on new 3ds LL it is a pain to find a compatible config.cia file. I have tested each one from devkit by bigbluebox and always get this error. Also tried to rename the .csu one to 3ds but I get black screen when running it. To install devmenu on my n3ds LL I found a devmenu_2x.cia, this one was the only I could install and then do all that process of mset and etc. I hope there is a "config_2x.cia"!!! Could someone help me please find this config cia file?