Well my new 3DS XL arrived in the mail, I've done some searching around and my card seems to be working on other 3ds xl systems. Maybe I have the files configured incorrectly? I'm on the latest firmware, I thought that was my issue until I Read r4s message. I'm on kernal 1.68b with firmware 5.1.0-11U I seem to be getting this error Borrowed from thread : http://gbatemp.net/threads/updating-r4i-sdhc-3ds-with-dsi-xl-having-an-issue.333821/ I also have this rv card The answer is more than likely right under my nose and I'm just having a hard time finding it or I'm just blind. Thanks for all those who can help and sorry if this is the wrong thread. It worked fine on my DSi xl so I know it's not knackered.