The processor may or may not be OK.
The USB-to-serial converter is not OK. If the board uses an Atmel processor for conversion (like on an Uno) it is possible that reflashing the firmware may resolve the problem.
The processor may or may not be OK.
The USB-to-serial converter is not OK. If the board uses an Atmel processor for conversion (like on an Uno) it is possible that reflashing the firmware may resolve the problem.