New, out of the box; All I´ve done is connect to USB port, It´s recognized as a USB/Serial CH340 And functions correctly. I can see the 3 controller files in place.
It has 4 LEDs: Rx, Tx, Power and L ( BUILTIN LED? ) The power LED turns ON and the L flashes a few times as though resetting, then starts at about 1s rate, but I can´t upload, neither code or bootloader ( haven´t tried with OLD BOOTLOADER option ), don’t want screw anything. I suppose it has a bootloader, it´s flashing the BUILTIN LED because it´s programmed? My TOOLs options are OK; “Arduino Nano”, “Atmega328P”, “ArduinoISP” I uninstalled and reinstalled the drivers and Arduibo IDE 1.8.13, doesnt work What could be wrong