Already bought the board around for 5 years, working fine. A few day before, one of my SD card broken, so I bought a new SD card. The thing was, my Tiny6410 board cannot detect (boot from) the new SD card. Already format the new SD card, copy images from old SD card, but still not working. Any idea? For record, my old SD card bought from Japan, while the new SD card from Taiwan, both same brand, same class and same storage capacity.