i flashed to Twinduck and swapped the default 128mb sd card for a spare 32GB i had. I can not get anything to run now. depending the firmware i get flashing red and green led, solid green or flashing green or no lights. i see the mass storage but nothing runs. does the SD card need to have many partitions or a single one. I have tried fat, fat32 and exfax all from a windows 10 box. and no luck. also tried 2 partitions and 1 small 1 large or 2 small (less than 4 GB for storage of collected data and 128mb for the payload) What firmware works for you in what SD configuration?