Ok, no problem I'm going to replace the 16U2 
I just noticed that the chip heats up a bit while plugged on usb, it's definitely shorted inside.
What can I do to test the switching circuit?
Ok, no problem I'm going to replace the 16U2 I just noticed that the chip heats up a bit while plugged on usb, it's definitely shorted inside.
What can I do to test the switching circuit?