Arduino Yun Linino side dead

Official Hardware Classic Yún
6

Please try this:

  1. Load the "YunSerialTerminal" sketch without any adjustments / changes
  2. Close the arduino software
  3. Connect to arduino COM Port with PUTTY (PuTTY: a free SSH and Telnet client)
    Putty Settings:
    Connection type: "Serial"
    Serial line: arduino yun COM port
    Speed: 9600
  4. Connect to arduino ("Open" button)

After connecting you should see a black window with an blinking cursor on it.
Now you can try to send a command - for example: ls

Can you see any output?

Snake