I have an Arduino Nano which was working well recently and all of a sudden (I don't know the reason why) while uploading a program into it I get the following error:
stk500_getsync(): not in sync: resp=0x00
While uploading only the RX red led will start flickering for a second or so but the TX green led will not light up. I checked all the settings (and they were still like before when everythng was working well) and even tried changing the USB cable and even with another computer but still in vain. It seems that the problem is the Arduino Nano board. Any ideas what the problem might be? Or is it possible to change any component to fix it?