Your card, the DSTTi whether fake or not, has not been updated officially by the company that made them. While there has been unofficial firmware updates, no patch has been released to support the latest DSi system version. I highly suggest you give up on the DSTTi and buy a regularly updated card such as the Acekard 2i and Supercard DSTwo. Both of which can be found here: Acekard 2i, Supercard DSTwo.
