great video but its missing the final step, here are some pointers,
- always install Atmel FLIP software first so that your PC has the USB drivers loaded.
- when a usb board contains an activated .hex file, the PC will never recognise the USB stick.
- pressing the hardware button on the board will put it into DFU mode and your PC will recognise the board again.
- on the final step, press "Load" to flash the new .hex file into the stick, then press "Start application" on the right side of the software, this will activate the new .hex file and thus, rendering your USB stick to be unrecognisable by the PC yet again.
Do not press the hardware reset button on the USB board anymore and enjoy the new payload.