Aruino UNO Rev3 Bricked ? (ATMEGA16U2)

I should mention that i have also tried to communicate with my ATMEGA328P-PU using RX and TX as mentionned on http://arduino.cc/en/Tutorial/ArduinoToBreadboard

And i am getting this result :

avrdude: Version 5.11, compiled on Sep  2 2011 at 19:38:36
         Copyright (c) 2000-2005 Brian Dean, http://www.bdmicro.com/
         Copyright (c) 2007-2009 Joerg Wunsch

         System wide configuration file is "E:\dev\arduino\arduino-1.0.2\hardware/tools/avr/etc/avrdude.conf"

         Using Port                    : \\.\COM3
         Using Programmer              : stk500v1
         Overriding Baud Rate          : 57600
avrdude: Send: 0 [30]   [20] 
avrdude: Send: 0 [30]   [20] 
avrdude: Send: 0 [30]   [20] 
avrdude: Recv: 
avrdude: stk500_getsync(): not in sync: resp=0x00

avrdude done.  Thank you.

It seems to be the samee problem...
I definatly think my atmega16u2 is dead...

Thanks for any help