Arduino NANO v3 led's constant on fried ?

Hi, my arduino nano stoped working. When i turn it on with Vin or usb it keeps the tx,rx and power leds on , no blinking. Pc doesn't recognize the arduino. The 5v and grng pins work , reset button doesnt do anything. I tried connecting reset to ground but nothing happened either.

Does anyone know what the prolem might be ?

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