Regarding another big problem I have with some of my arduino's boards I start to suspect the ATMega16U2 chip to be corrupted and would like to be sure that he's working fine.
So I've download Atmel Flip and I'm able to connect to the ATMega16u2 through serial with the proper driver installed and the 16u2 passed in DFU mode.
But now I'm a bit stucked. Indeed on the github repository of the arduino project I can only find the 8u2 code. And I can't find any hex file firmware for the 16u2...
As it's the first time I'm doing this, can you help me a bit ?