Arduino UNO WiFi and External Antenna

Using Arduino Installation & Troubleshooting
#1

Hi,

I have bought an Arduino UNO WiFi (Developer Edition) and an external antenna.
I attached the external antenna onto the arduino board.

And I would like to ask if there is any modification (in both hardware and software) I have to make in order to make the external antenna to work?
e.g. do I need to disable the internal antenna? If yes, how can I disable the internal antenna?

I have tried to find more info about this board(especially with an external antenna) on google, but nearly no info can be found…

Thank you very much.

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#2

According to the schematic (File Not Found) it looks like the board is NOT supposed to have both the external antenna connector and the internal antenna. It shows a zero-ohm resistor (R36) connecting the ESP8266 to the external antenna connector (CX1) and has a table showing that for Internal antenna you place the internal antenna (X3) and for the external antenna you place the resistor (R36) and connector (CX1).

#3