Bootloader
Make sure there's a bootloader burned on your Arduino board. To check this, reset the board. The built-in L LED (which is connected to pin 13) should blink. If it doesn't, there may not be a bootloader on your board.
Make sure there's a bootloader burned on your Arduino board. To check this, reset the board. The built-in L LED (which is connected to pin 13) should blink. If it doesn't, there may not be a bootloader on your board.