use AVRDUDESS to detect Arduino Nano
Command 1:
avrdude -c arduino -P COM4 -b 57600 -p m8
Result:
Detected 1e950f = ATmega328P
Command 2:
avrdude -c arduino -p m328p -P COM4 -b 57600 -U hfuse:r:-:h -U lfuse:r:-:h -U efuse:r:-:h
Result:
SUCCESS: Read high fuse
SUCCESS: Read low fuse
SUCCESS: Read extended fuse