Recently, there are some customers downgrade the SuperCard Lite version firmware v1.7 to v1.63. Even I don't know why they downgrade it, but they found out that the SuperCard Lite crash.
Here list below are the steps: How to upgrade to V1.7 again.
[*]1. Format a MicroSD card. [*]2. Copy the firmware V1.7 file on it. Don't copy any other files. [*]3. Insert the MicroSD card and SuperCard Lite. [*]4. Open the DS power switch, don't care about the screen and wait 5 seconds. [*]5. press "A" button. You will find out that you can upgrade to V1.7