I have a U-Boot prompt via the UART daughter board on normal power up. However I get no USB recognised (10d6:10d6 with lsusb) over the OTG microUSB connection if I hold the ADFU button down on power up. Am I missing something in how to connect in order to reflash the eMMC?
As a work-around, is there any other way to boot from the SD card (or USB, or TFTP) via the U-Boot prompt? My U-Boot describes itself as “2015-11-17 official release SDK”.
Thanks and regards