I have an arduino R1 and I needto reflash the firmware for the serial. what I did was: I soldered the resistor into Arduino's Atmega8u2 (the very first one) and then I reset atmega8u2 and by wiring the pins as mentioned in: https://www.arduino.cc/en/Hacking/DFUProgramming8U2 I can confirm it via t…

DFU atmegau82 even if in DFU mode dfu-programmer does not recognize it

kprims April 21, 2018, 3:50pm 2

03eb:2ff7 at90usb82 DFU bootloader

sudo dfu-programmer at90usb82 erase