I don't understand how that works.
My DSi is 1.4, and so is my girlfriend's.
The old DSTwo from 6 months ago that has never been updated still works in BOTH DSi's.
The brand new DSTwo doesn't work in EITHER.
edit: Thinking about it again, maybe it does make sense. The old DSTwo was never updated ... I think. Maybe it was, and I wasn't aware of it, I don't know. But if that's the case, it means I need a DS that hasn't been updated to 1.4 yet, and if I could have found that, I wouldn't have had to buy a DSTwo card in the first place, I could have kept using my Acekard 2i.
So ... wait, no, it still doesn't make sense.
I bought the first DSTwo cart 6 months ago because I had already upgraded my firmware to 1.4. Doing so made my Acekard no longer work, so THAT'S why I bought the DSTwo. Because it came ready, and usable on the 1.4 firmware.
So why doesn't the DSTwo I bought 2 weeks ago work if it's still on 1.4? Nothing's changed.
wtf