"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 "
so, dont downgrade peopes, will give you problems!!!