I need help with the CM3 upgrade. I've tried both the automated and manual (Windows, Cygwin) methods and both result in a "failed to write correct length, returned 0" error.
Furthermore, the automated method identifies the CM3 board as a Microsoft XBox controller Type S. The manual Cygwin method does get the proper device entry, but again returns the "failed to write correct length, returned 0" error.
Thanks!
SOLVED. Use a USB 2.0 port, not 3.