3DS System Transfer Information (Read before Posting!)

    I've been trying to use my new 16 gig card to replace my old 2 gig.

    Works fine then 10 seconds later "SD card has been removed" message pops up. Been trying to fix this for about two hours now.

    Sometimes I'd be able to play a random Ambassador game, return to the Home menu causing it to save but it says save has been corrupted.

    My old 2 gig still works great. Hopefully it never runs into any problems.

    The 16 gig card is a Sandisk Ultra Class 10 whatever.

    I've followed Nintendo's own guide
    this one: http://lofi-gaming.org.uk/blog/2012/01/19/how-to-upgrade-your-nintendo-3ds-sd-card/
    and I've scoured the entire web, nothing.
    We have entered an endless recursion of time.