Thanks,
I read somewhere that USB3 supply 0.9A current, and the maximum current for nano is 0.5A.
But it is strange I do not see many issues like this in the web (maybe my nano was defective).
The fact that the capacitor was smoked and not the diode, is it because high current?
Can I do something to bypass this capacitor? I do not have spare parts, and buying one new will take more than a month.