Hi, is any movie etc. or some "working" guide about perpetual bootloader mode? I am playing with these reset and but buttons and nothing change, when I hit reset and then immediately but and hold it, I see few slow flash of LED and then fast flash, still can't upload any sketch, and don't see anything (flash LED) change on, have that notice "dfu-util 0.8
dfu-util: Invalid DFU suffix signature
Copyright 2005-2009 Weston Schmidt, Harald Welte and OpenMoko Inc.
dfu-util: A valid DFU suffix will be required in a future dfu-util release!!!
Copyright 2010-2014 Tormod Volden and Stefan Schmidt
This program is Free Software and has ABSOLUTELY NO WARRANTY
Please report bugs to email@example.com
dfu-util: No DFU capable USB device available"