1）Create a new file named "wpa_supplicant.conf" and
write the following:
country=CN #corresponding country code
ctrl_interface=DIR=/var/run/wpa_supplicant GROUP=netdev
update_config=1
network={
ssid="your wifi name"
psk="your wifi password"
priority=1
}
Save and exit.
2）Take out the TF card, connect to the computer with the reader and copy the modified "wpa_supplicant.conf" file to TF card boot file catalog.
3）Re-insert the TF card and turn it on. and open the Wifi power (
Press the power button twice quickly)
At this point, the console will automatically connect to the WIFI you just set.