Meanwhile I added a firmware file but still doesn't work. http://wiki.friendlyarm.com/wiki/index.php/NanoPi_Fire3#WiFi it's mentioned that this board will work with RTL8188CUS/8188EU 802.11n WLAN Adapter RT2070 Wireless Adapter RT2870/RT3070 Wireless Adapter RTL8192CU Wireless Adapter mi WiFi mt7601...