I have an Arduino Nano with a little problem... honestly I think I burned it but I'm here to check if it's really gone or if there is some hope. On the Internet there are some similar cases but my problem seems a little different.
It was working until today when I did my project connections with Arduino and powered it up. Initialy it worked fine but after I pressed a button in the project it stopped (I don't know if it stopped because I pressed the button or if it stopped a little earlier). This button I've tested some weeks ago and worked and I know it's not a project error but I may have placed the wire on the wrong digital pin, honestly I don't know. I powered it down and after a small check I powered up again and the L led stayed on high permanently with all other output digital pins.
After some tries I then removed the Arduindo from the circuit and noticed that the L led turned off. I realized that it turns on when I touch D2 (which is an output in my project) or when I put the Arduino back to the protoboard (with all connections removed). Here a small video:
After all that, I tried to reupload my sketch to Arduino but now I'm receiving the avrdude error: avrdude: stk500_getsync(): not in sync: resp=0x00. When the IDE show me the upload is starting the RX led blinks 3 times and after nearly 30 seconds the error shows up.
Is there something I can try or I need to buy a new one?