I just hacked my 4th DS last night. New one is a new 3ds xl that came with fw 11.4 on it. Everything went well I think. Most games I installed work fine. All of them work perfect on the other 3 DSs Some of the cias I tried to install would get an error when trying to install. These same games installed fine on 3 other systems all with fw 11.3. I tried to install Hyrule warriors and on 3rd try it completed. Thegamestartsfine but when I go and press something on the title screen a black error screen comes up : Error type : generic Address: 0x00119c1a8 Error code 0xd900458b Not sure what's wrong. Most other cias work fine. It won't install Mario kart 7, Zelda 4 swords, and Pokémon x as well. I am not sure if there is a prob with sd card.... its brand new 32 gb. If I want to format the card, would that possibly fix it? What's the best advice to do so .... I followed the 3dsguide website to install all 4 ds cfws. If I were to format the card where is the correct guide to put the correct files back on sine I have the backups the guide suggested?