EDIT: Erm, as it turns out--putting absolutely any sort of microSDXC in it solves the problem? The unit just underwent an FPGA update, so it's unlikely it's a fake unit (or if it is, it's a quality copy) Got a Gateway in today, and having some difficulties with it. The unit came from ModchipsDirect. I ordered from there as I got my original Gateway unit from them and it has worked fantastically. However, this secondary unit is having an issue. The new unit I got in today is acting unusually. Whenever it is inserted into either my 3DS or my brother's 3DS, the unit "shorts out". It makes a popping sound and the unit immediately turns off. Attempting to restart the unit shows the LED coming on, and then the unit turns off again. A side by side photo of the Gateway units. On the left is the first flash cart I ordered a very long time ago. It works fine on either unit. On the right is the second flash cart I ordered more recently that has been shorting out. Visibly, the only difference I can pick up on is the logo on the right is different. It's darker and taller. However, I can't say for certain if this indicates fraudulent or just a different batch of branding stickers. Again, both came from ModChipsDirect. Do I need to tell them I got a fraudulent unit and ask for a refund?