my usb port was not conected when that happened
That doesn't matter because the ATmega16U2 was still connected to the power supply.
Does the computer still recognise it as a serial port? If not this chip is fried.
my usb port was not conected when that happened
That doesn't matter because the ATmega16U2 was still connected to the power supply.
Does the computer still recognise it as a serial port? If not this chip is fried.