Hi ! i have a friend that has an UNO wich doesnt seems to be stable. I have readen that using IDE 0022 and flashing the DFU could help:
If your Uno is an early model, you may need to use the dfu-programmer tool to flash the 8u2 firmware
My question, before flasing, is :
-sure there will be no damage with flashing ?
-how to recognize an earlier model of the UNO ?