In UP mode, I only get 1 short flash on D6 while D5 is solid red. It might be worthwhile to gently pressing around the Arduino RESET/5v pins and the D0/D1 to see if there is a short. Also, have you tried the other Arduino with this firmware update?
In UP mode, I only get 1 short flash on D6 while D5 is solid red. It might be worthwhile to gently pressing around the Arduino RESET/5v pins and the D0/D1 to see if there is a short. Also, have you tried the other Arduino with this firmware update?