WiFi shield (antenna connector) NOT RESPONDING AFTER UPDATE ! ! !

Hello to all, led light,

I just got 2 WiFi shields today and I proceeded to upgrading the firmware. After following the process from here (the only ione that worked with other 2 previous shields with integrated antenna) :

http://www.dfrobot.com/community/how-to-upgrade-arduino-wifi-shield-firmware-on-windows.html

both shields are INACTIVE ! (no green LINK led light, no orange L9 light).

Has anybody encountered this issue?

Best regards,
Jean