Hi, I have ordered a Sky3ds+ cart. But it doesn't seem to work. Flashes non stop when plug in the pc with new firmware or not. Not detected has a USB mass storage. It doesn't flash at all in the console. I ordered from 3ds-cart.com. They say they test every unit going out. I kind of doubt that. I wanted to know if someone had a similar problem and if there's something to do before sending it back. The customer service has been of no help.